Books like 'The Longevity Thesis'

Readers who enjoyed The Longevity Thesis by Jennifer Rahn also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.

horror  high fantasy  sword-sorcery  dark

  • The God is Not Willing by Steven Erikson

    The God is Not Willing by Steven Erikson

    Rated: 4.67 of 5 stars
    · 15 ratings
    Many years have passed since three Teblor warriors brought carnage and chaos to the small lakeside settlement of Silver Lake. While the town has recovered, the legacy of that past horror remains, even if the Teblor tribes of the north no longer venture into the southlands. One of those three, Karsa Orlong, is now deemed to be a god, albeit an indifferent one...
  • Dungeons by Rohan M. Vider

    Dungeons by Rohan M. Vider

    Rated: 4.58 of 5 stars
    · 12 ratings
    Humanity has inherited a contested Dominion and a Patron intent on enslaving it. Others, too, gather, sensing weakness. Can Jamie and Sierra defy the odds? Can they save humanity? And at what cost?Enter the world of the Trials again and join Jamie on his journey to gather power and save humanity...
  • The Wound of the World by Edward W. Robertson

    The Wound of the World by Edward W. Robertson

    Rated: 4.43 of 5 stars
    · 14 ratings
    Dante and Blays have forced Gladdic from the Collen Basin. But the victory might only be the first battle in a much larger war. With the land on the brink of starvation and politically fractured, Dante and Blays scramble to secure Collen's food, borders, and allies. Before their work is done, rumor arrives from Mallon. The enemy is mustering for another attack...
  • The Silver Thief by Edward W. Robertson

    The Silver Thief by Edward W. Robertson

    Rated: 4.43 of 5 stars
    · 14 ratings
    Dante Galand has cured the sickness that trapped him on the Plagued Islands. Now, it's time to leave. And kill a priest. The target is Gladdic of Bressel. Gladdic, who executed Dante's friend, the pirate Captain Twill. Who all but enslaved the Plagued Islands. And whose visions of empire are far from over...
  • Summoner 8 by Eric Vall

    Summoner 8 by Eric Vall

    Rated: 4.50 of 5 stars
    · 10 ratings
    As Gryff learns more about the Shadowscape and the god-like Archons that rule it, the stakes keep getting higher. The angel-monster Phi is still hellbent on destroying humanity, so Gryff and his friends must spread out to the far corners of Mistral to make sure she doesn’t succeed. And then they must end her. Once and for all...
    Categorized as:
    dark  sword-sorcery  adult  book  epic  fiction  harem  high-fantasy
  • What Lies Beyond by Edward W. Robertson

    What Lies Beyond by Edward W. Robertson

    Rated: 4.50 of 5 stars
    · 10 ratings
    The White Lich has conquered Mallon and smashed all resistance to him. Now, he marches on the north. Within weeks, Narashtovik will fall to his armies. Gask will follow. And after that, there can be no stopping him. Dante and Blays have a single hope of victory: the Spear of Stars, the long-lost weapon that may be capable of killing the lich. There's just one problem...
  • The Light of Life by Edward W. Robertson

    The Light of Life by Edward W. Robertson

    Rated: 4.42 of 5 stars
    · 12 ratings
    After a year of fighting across three different lands, Dante and Blays have finally brought Gladdic to justice—and in the process, they've unleashed a horror beyond all reckoning.The enemy is known as the White Lich. He is ancient. He is immensely powerful. And Gladdic believes he will soon enslave all of Tanar Atain...
  • The Spear of Stars by Edward W. Robertson

    The Spear of Stars by Edward W. Robertson

    Rated: 4.42 of 5 stars
    · 12 ratings
    The White Lich has conquered Tanar Atain. Soon, he means to take the entire world. Dante suspects his next target will be Bressel, where the Tanarians have established their court in exile. The only chance to stop the lich will be to forge a fragile alliance between the bitter enemies of three different lands: Tanar Atain, Mallon, and Narashtovik. The city stands on the brink of rebellion...
  • Wild Wild Quest by Eric Ugland

    Wild Wild Quest by Eric Ugland

    Rated: 4.49 of 5 stars
    · 21 ratings
    Straight out of the West (or, you know, somewhere through a gloom portal), in a thunder of hooves (but they’re kinda like giant turtle hooves, if you can picture it?), comes Montana Coggeshall, gun (sword) slinger.Sure, he’s survived Fiends’ Night and an all-out goblin war. But for his people in Coggeshall to truly be safe, Montana needs to go out and find the source of all these crazy attacks...
  • Grog III  (The Ebon Blades Book 3) by RW Krpoun

    Grog III (The Ebon Blades Book 3) by RW Krpoun

    Rated: 4.67 of 5 stars
    · 6 ratings
    Provine Sael and her weary band have put the great northern plains behind them, and are heading south into the Empire, winter quarters beckoning to them after a long, hard summer. But crossing the raid-torn northern frontier holds new problems and challenges as the little group re-enters an empire burdened by war and war's demands...
  • Skulduggery 7 by Logan Jacobs

    Skulduggery 7 by Logan Jacobs

    Rated: 4.67 of 5 stars
    · 6 ratings
    Building a Criminal EmpireFor the last several months, our whiskey business has expanded throughout the city like a virus, and we’ve gotten rich and powerful. The time to step out of the shadows, grab power, and make my mark on the world is now.Our enemies are lined up, and now it's time to knock them down like dominoes. Once the last one falls, we’ll own the city lock, stock, and barrel...
    Categorized as:
    dark  sword-sorcery  adult  book  dark-fantasy  epic  fiction  harem
  • The Duelist 7 by Eric Vall

    The Duelist 7 by Eric Vall

    Rated: 4.67 of 5 stars
    · 6 ratings
    Alex and his family finish their business on Terr and leave the island better than they found it.But they can’t go home yet.Amaya’s fate as the Prophetess looms ever closer, but Alex comes to suspect the oryx-woman may not be what, or rather who, the Order thinks she is.To find answers, they plan to travel to Eng Isle, but Alex keeps having these dreams...
  • To Wield a Crown by Helen Scheuerer

    To Wield a Crown by Helen Scheuerer

    Rated: 4.67 of 5 stars
    · 6 ratings
    A final quest. A people divided. Can one cyren turn the tides of fate?The time has come to obtain the final birthstone of Saddoriel. Reeling from a near-deadly sacrifice, Roh must rally all her strength if she is to take her place upon the throne.But with cyrenkind divided and enemies closing in, the road to Lochloria and beyond is more dangerous than ever...
  • Betrayer's Bane by Michael G. Manning

    Betrayer's Bane by Michael G. Manning

    Rated: 4.41 of 5 stars
    · 24 ratings
    Tyrion was a good person who had been born to a simple family and raised with love, but the world has shaped him for a different fate. Twisted by violence and torture, he is obsessed with a relentless desire for vengeance, and he has sown the seeds of wrath in his children...
  • Summoner 11 by Eric Vall

    Summoner 11 by Eric Vall

    Rated: 4.50 of 5 stars
    · 8 ratings
    As if one Archon loose on the Southern continent wasn’t enough, now the snake-goddess Utuni has awakened. And she’s joined forces with Miralea. But the jaguar goddess is still weak after her defeat at Gryff’s hands, so there’s still a chance for Gryff to capture her...
  • Summoner 9 by Eric Vall

    Summoner 9 by Eric Vall

    Rated: 4.50 of 5 stars
    · 8 ratings
    Phi might be taken care of, but now another problem arises to the South. Gryff and his team travel to the Southern Continent to address rumors of a risen goddess, and as they trek through the treacherous jungles, Gryff has to keep his wits about him … Because something is watching...
  • Summoner 10 by Eric Vall

    Summoner 10 by Eric Vall

    Rated: 4.50 of 5 stars
    · 8 ratings
    Gryff and his team have tracked down the Archon Miralea to her temple fortress. But that was the easy part. Now, they must fight their way through her hundreds of crazed followers, continue to survive the perils of the jungle, and try to defeat their third Archon...
  • Relentless by R.A. Salvatore

    Relentless by R.A. Salvatore

    Rated: 4.46 of 5 stars
    · 20 ratings
    The epic conclusion to the long-awaited trilogy featuring one of the most beloved characters in all of fantasy—Drizzt Do'Urden—a rollicking tale of life, death, intrigue, magic, danger, and the timeless bonds of family and friendship from New York Times bestselling author R. A. Salvatore...
  • Transcendence and Rebellion by Michael G. Manning

    Transcendence and Rebellion by Michael G. Manning

    Rated: 4.50 of 5 stars
    · 15 ratings
    The world is on the cusp of destruction as Mordecai’s power grows beyond the limits of his own control, yet most of the powers that rule the world are oblivious. The only hope of salvaging their civilization lies with his children, but they have been scattered and branded outlaws...
    Categorized as:
    dark  sword-sorcery  adult  book  epic  fiction  high-fantasy  horror
  • Summoner 18 by Eric Vall

    Summoner 18 by Eric Vall

    Rated: 4.50 of 5 stars
    · 6 ratings
    Gryff has been extended an offer and invitation to the Shadowscape by the Archon Carth: If he stays in her palace for a week, she will spare Varle Enclave.Sounds easy enough, but little does Gryff know what this trip will cost him.Or what he’ll soon learn...
  • Resurrected as a Drow by Logan Jacobs

    Resurrected as a Drow by Logan Jacobs

    Rated: 4.50 of 5 stars
    · 6 ratings
    My name is Fynn Draven, and I used to be from this world.I think I might have died, but I can’t remember. All I know is that I woke up on an altar as a drow male, and the beautiful dark-elf priestesses said they begged their Spider Goddess for help.They ended up with me...
    Categorized as:
    dark  sword-sorcery  adult  book  epic  fiction  harem  high-fantasy
  • Summoner 17 by Eric Vall

    Summoner 17 by Eric Vall

    Rated: 4.50 of 5 stars
    · 6 ratings
    Gryff is a married man, a professor, and a soon to be father now.But his life is still far from ordinary, boring, or safe.Especially when massive, mega monsters start appearing on his honeymoon...
  • Forbidden Arcana: Morgana by Tamryn Tamer

    Forbidden Arcana: Morgana by Tamryn Tamer

    Rated: 4.50 of 5 stars
    · 6 ratings
    Death in Forbidden Arcana wasn’t much more than an inconvenience but losing his home, that wouldn’t be easy to come back from. So, when Grim and their new alliance discovers a way to take down the protective barriers surrounding villages and cities, Jericho has no choice but to seek out a new way to protect Dayrose...
  • The Lost Reavers 2 by Mike Truk

    The Lost Reavers 2 by Mike Truk

    Rated: 4.50 of 5 stars
    · 6 ratings
    Having defeated the monstrous foe lurking at Erro's doorstep, Hugh swears to do whatever it takes to protect his new home and the beautiful women he loves.Toward that end, he seeks to form troubling alliances against a common foe, only to discover that nothing is as it seems...
  • Magic-Scars by C.L. Schneider

    Magic-Scars by C.L. Schneider

    Rated: 4.50 of 5 stars
    · 6 ratings
    They took it all: his will, his memories, his freedom, his magic. Imprisoned by his enemies, tortured and drugged to keep his magic suppressed, Ian Troy returns to a world as marred and broken as he is. Ravaged by the reign of her new High King, Draken of Langor, Mirra’kelan’s citizens live in fear. The Shinree, misled by Jem Reth’s promises, are no longer slaves, but they are far from free...
  • Summoner 12 by Eric Vall

    Summoner 12 by Eric Vall

    Rated: 4.50 of 5 stars
    · 6 ratings
    The capital Umo Portana has fallen to the goddess Utuni. But Gryff isn’t about to let the rest of Utun fall to the serpent Archon. The only problem is, Utuni’s blood aura makes her legions more powerful with each monster that’s killed, so Gryff and his team realize they’re going to need a little help. Gryff expects maybe a few Utun men to join his cause...
  • Summoner 15 by Eric Vall

    Summoner 15 by Eric Vall

    Rated: 4.50 of 5 stars
    · 6 ratings
    Gryff has his hands pretty full in the south.Not only is Varleth still missing, but now Veopa has awakened in the country of Vay.Plus, his women have been emboldened by his hawk wife Freya, and now they all want to bear him children.It’s a hard job, but someone’s gotta do it, and Gryff is certainly not complaining...
  • Summoner 16 by Eric Vall

    Summoner 16 by Eric Vall

    Rated: 4.50 of 5 stars
    · 6 ratings
    Gryff is finally returning to Mistral.But home is not the same as he left it, and neither is he.Now, Gryff has to figure out how to reintegrate himself into his classes and the Academy, just in time for midterms.Oh, and he’s got a wedding to plan, too...
  • Grog II: Book 2 of the Ebon Blades by RW Krpoun

    Grog II: Book 2 of the Ebon Blades by RW Krpoun

    Rated: 4.50 of 5 stars
    · 6 ratings
    The Dusmen are invading, and nothing will stop Provine Sael from leading an investigation into the many questions about the northerner’s late start, and so Grog and Burk must march north as well. With the onset of the war, both sides have stripped the border of troops, and it may well be safe for the small band to slip into enemy territory and poke into odd corners in search of the truth...
  • Lucifer Reborn 2 by Dante King

    Lucifer Reborn 2 by Dante King

    Rated: 4.50 of 5 stars
    · 6 ratings
    Turns out that being the only human candidate for the next Archlord of Hell means I'm kind of special. Sure, there are some good things (a whole lot of good things, if I'm honest), but now I'm attending not only one supernatural academy but two.Twice the classes. Twice the antics. Twice the women.Celestial Academy here we come. .
    Categorized as:
    dark  sword-sorcery  adult  audiobook  book  demons  epic  fiction
  • Dragon Born 3: The Shifter's Hoard by Dante King

    Dragon Born 3: The Shifter's Hoard by Dante King

    Rated: 4.50 of 5 stars
    · 6 ratings
    It’s been four months since I defeated Ivan Grozny, King of the Nightlords. He ran off with his tail tucked between his legs, and no one has seen anything of the Nightlords since.The Dragon’s Hoard has not remained idle. Two of my mates are days away from giving birth to my children, and I’ve been slowly expanding and perfecting my base while hunting interlopers...
    Categorized as:
    dark  sword-sorcery  adult  book  epic  fiction  high-fantasy  horror
  • Making Monster Girls 4 by Eric Vall

    Making Monster Girls 4 by Eric Vall

    Rated: 4.50 of 5 stars
    · 6 ratings
    I am so close to triumph I can taste it, and everything is within my grasp.A bevy of scientifically engineered monster girls.The destruction of the Matriarchy.Wealth and power beyond reckoning.I just need to make The Duchess mine...
    Categorized as:
    dark  sword-sorcery  fantasy  harem  drama  audiobook  steamy  fiction
  • Making Monster Girls 5 by Eric Vall

    Making Monster Girls 5 by Eric Vall

    Rated: 4.50 of 5 stars
    · 6 ratings
    The duchess has believed my con, and now she is almost mine.As soon as I make her my monster girl, my coup of this city will begin.Then I will make every aristocrat my monster girl and rule this place...
  • Mercenary of Empyrea : An Isekai Barbarian Fantasy Adventure by Michael Dalton

    Mercenary of Empyrea : An Isekai Barbarian Fantasy Adventure by Michael Dalton

    Rated: 4.50 of 5 stars
    · 6 ratings
    I don’t know who I am. I only know what I need to be.I awoke in a tomb. I had nothing but a big sword and uncertain memories from uncertain lives.I was a great warrior who wandered this land before being killed by an ageless tyrant wizard-king. I was a warrior of a very different sort, who lived in a city of steel and glass...
  • Dragon Rising 1 by Dante King

    Dragon Rising 1 by Dante King

    Rated: 4.50 of 5 stars
    · 6 ratings
    John Devonte knows women and wargear. And now he gets to combine the two. All in the name of saving the world.John Devonte looked to the outskirts of the Draconic Empire for refuge. After adventuring for the past two decades, hunting monsters and collecting coin, he thought the town of Vismuth would provide some solace.Except what he discovered there was the beginning of the end...
  • Summoner School 3: A Reverse Portal Fantasy by Eric Vall

    Summoner School 3: A Reverse Portal Fantasy by Eric Vall

    Rated: 4.50 of 5 stars
    · 6 ratings
    Between classes, beast hunts, rival students, and tournament battles, Andrew barely has enough time to enjoy the spoils of success: his sweet house, his fast car, and his beautiful girlfriends...
    Categorized as:
    dark  sword-sorcery  harem  fantasy  audiobook  horror  epic  fiction
  • Primal Undying by Melody Rose

    Primal Undying by Melody Rose

    Rated: 4.50 of 5 stars
    · 6 ratings
    A spirit of light turned into a goddess of darkness… and a world at the brink of war… With the Morrigan unleashed in my heart and five men now in my bed, my dreams of ever being a normal Prime Academy student have long been out the window. Now, new dreams and visions decide my fate… and the fate of us all.But as I tame the darkness within, the darkness against us grows impatient...
  • Empire of Grass by Tad Williams

    Empire of Grass by Tad Williams

    Rated: 4.32 of 5 stars
    · 24 ratings
    Following on from The Witchwood Crown, Empire of Grass: Book Two of The Last King of Osten Ard continues the story of one of the best loved fantasy epics of all time - Memory, Sorrow and Thorn, the inspiration for Christopher Paolini and George R. R. Martin...
  • The OP MC 4 by Logan Jacobs

    The OP MC 4 by Logan Jacobs

    Rated: 4.38 of 5 stars
    · 8 ratings
    God of WinningLife as the God of Time is just awesome.Not only am I a deity in this fantastical world, but now I’m also a Knight of Sorreyal, a Dragon Slayer, and the Archduke of my own duchy.But not everyone is a fan of my success, and someone is trying to kill me from the shadows.My enemies will soon learn I’m also the God of Winning.And I never, ever lose...
    Categorized as:
    dark  sword-sorcery  adult  audiobook  book  epic  fiction  harem
  • A Throne From the Ashes by C.C. Peñaranda

    A Throne From the Ashes by C.C. Peñaranda

    Rated: 4.38 of 5 stars
    · 8 ratings
    As darkness descends, two destinies will merge. But as embers fly, one may rise from the ashes.A KINGDOM…Far from the land she knows, Faythe is beckoned toward the secrets of her heritage. Through trials of her name and a challenge to her claim, does she have what it takes to rule? Faythe bears a future that haunts; Reylan harbors a past that lingers...
  • The King of the Vile by David Dalglish

    The King of the Vile by David Dalglish

    Rated: 4.38 of 5 stars
    · 8 ratings
    “Ashhur will awaken in a blaze of fire…” ---- Mordan has lost their king, and Harruq Tun is a poor replacement. He has slain a god, but he cannot quell the unrest growing between the angels and the humans they are supposed to protect. The thin line between protectors and rulers blurs with each bloody death...
    Categorized as:
    dark  sword-sorcery  adult  angels  audiobook  book  demons  epic
  • Dungeon In My Closet by Logan Jacobs

    Dungeon In My Closet by Logan Jacobs

    Rated: 4.38 of 5 stars
    · 8 ratings
    Starting college was already exciting enough, but then I found a portal in my dorm closet.This portal led to a fantastical world full of monsters, magic, dungeons, and the ability to level up my attributes, weapon, and armor stats.Speaking of weapons and armor: the best part of this new world is the enchanted weapons and armor I found that turned out to be beautiful women...
  • All-Knowing Novice by Kenneth Arant

    All-Knowing Novice by Kenneth Arant

    Rated: 4.30 of 5 stars
    · 10 ratings
    Knowledge is power. Knowledge is safety. Knowledge is Happiness. But only if you can act on it...In spite of his best efforts, sixteen-year-old Taryn is an outcast. No one in the city will sully themselves by associating with a Clanless, and without someone to jumpstart his Eco core, he's unable to fulfill his dream of walking the path of a cultivator...
  • Dragon Emperor 3 by Eric Vall

    Dragon Emperor 3 by Eric Vall

    Rated: 4.30 of 5 stars
    · 10 ratings
    Having won the king’s favor, Evan sets his sights on rebuilding the city of Hatra to its former glory. Until mummified harpies begin to attack them. Suspicious that the villainous Green Glass Sect is behind these latest assaults, Evan starts looking for answers, making allies, and consolidating his power. Luckily, he’s a kick ass dragon lord now...
    Categorized as:
    dark  sword-sorcery  adult  book  epic  fiction  harem  high-fantasy
  • The Free Bastards by Jonathan French

    The Free Bastards by Jonathan French

    Rated: 4.30 of 5 stars
    · 10 ratings
    The long-awaited war has come in the sweeping conclusion to the Lot Lands trilogy--another irresistibly swashbuckling, swaggering, foul-mouthed fantasy.The long-awaited war has come in the sweeping conclusion to the Lot Lands trilogy--another irresistibly swashbuckling, swaggering, foul-mouthed fantasy...
  • The Demon City by Evan Currie

    The Demon City by Evan Currie

    Rated: 4.30 of 5 stars
    · 10 ratings
    Born in flame and flood, the newly born community of Atlantis has begun to rebuild from being forced from their homes by the Demonic hordes. For Elanthielle however, the war is still out there...
  • To Blackfyre Keep by Anthony Ryan

    To Blackfyre Keep by Anthony Ryan

    Rated: 4.30 of 5 stars
    · 10 ratings
    GUYIME—DEMON CURSED WIELDER OF THE NAMELESS BLADE—FOLLOWS THE TRAIL OF THE FABLED SEVEN SWORDS INTO THE TROUBLED NORTHLANDS, A REALM WHERE HE WAS ONCE CALLED KING…AND RAVAGER.Magically guided to enlist in the retinue of a lovesick knight, Guyime and his companions journey to the haunted ruin of Blackfyre Keep, a castle legend tells cannot be held. But a far deadlier threat than mere ghosts awaits...
  • Queen of Storms by Raymond E. Feist

    Queen of Storms by Raymond E. Feist

    Rated: 4.28 of 5 stars
    · 27 ratings
    Dark and powerful forces threaten the world of Garn once more in this second novel in legendary New York Times bestselling author Raymond E. Feist’s epic fantasy series, the Firemane Saga.Hatushaly and his young wife Hava have arrived in the prosperous trading town of Beran’s Hill to restore and reopen the fire-damaged Inn of the Three Stars...
  • The Thief Who Wasn't There by Michael McClung

    The Thief Who Wasn't There by Michael McClung

    Rated: 4.25 of 5 stars
    · 12 ratings
    Bellarius, saved from utter destruction, is now plunged into vicious civil war. Amra has vanished, and while Holgren has a plan to find her and bring her back, his plan teeters between impossibility and insanity...
  • Dawn of Night by Paul S. Kemp

    Dawn of Night by Paul S. Kemp

    Rated: 4.21 of 5 stars
    · 14 ratings
    The shadows recede from a lost temple in a forgotten wilderness.The sun rises on a new calling for a man as loyal as he is mysterious.The day's beginning finds Erevis Cale holding in his steady hands more power than he dared hope for - and more responsibility than he ever imagined.For now, he will have to put his trust in a god served by thieves and born of chaos...
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