Eighth Day Series by Dianne K. Salerni

When Jax wakes up to a world without any people in it, he assumes it's the zombie apocalypse. But when he runs into his eighteen-year-old guardian, Riley Pendare, he learns that he's really in the eighth day—an extra day sandwiched between Wednesday and Thursday. Some people—like Jax and Riley—are Transitioners, able to live in all eight days, while others, including Evangeline, the elusive teenage girl who's been hiding in the house next door, exist only on this special day... moreWhen Jax wakes up to a world without any people in it, he assumes it's the zombie apocalypse. But when he runs into his eighteen-year-old guardian, Riley Pendare, he learns that he's really in the eighth day—an extra day sandwiched between Wednesday and Thursday. Some people—like Jax and Riley—are Transitioners, able to live in all eight days, while others, including Evangeline, the elusive teenage girl who's been hiding in the house next door, exist only on this special day.And there's a reason Evangeline's hiding. She is a descendant of the powerful wizard Merlin, and there is a group of people who wish to use her in order to destroy the normal seven-day world and all who live in it. Torn between protecting his new friend and saving the entire human race from complete destruction, Jax is faced with an impossible choice. Even with an eighth day, time is running out. less

After the all-out Eighth Day war in Mexico, Jax, Riley, and Evangeline have gone into hiding. There are still rogue Transitioners and evil Kin lords who want to use Riley, a descendant of King Arthur, and Evangeline, a powerful wizard with bloodlines to Merlin, to get control over the Eighth Day. So when Finn Ambrose, a mysterious stranger, contacts Jax claiming to be his uncle, Jax’s defenses go up—especially when Finn tells Jax that he’s holding Jax’s best friend, Billy, hostage... moreAfter the all-out Eighth Day war in Mexico, Jax, Riley, and Evangeline have gone into hiding. There are still rogue Transitioners and evil Kin lords who want to use Riley, a descendant of King Arthur, and Evangeline, a powerful wizard with bloodlines to Merlin, to get control over the Eighth Day. So when Finn Ambrose, a mysterious stranger, contacts Jax claiming to be his uncle, Jax’s defenses go up—especially when Finn tells Jax that he’s holding Jax’s best friend, Billy, hostage. To rescue Billy and keep Riley and Evangeline out of the fray, Jax sneaks off to New York City on his own. But once there, he discovers a surprising truth: Finn is his uncle and Jax is closely related to the Dulacs—a notoriously corrupt and dangerous Transitioner clan who have been dying to get their hands on Riley and Evangeline. And family or not, these people will stop at nothing to get what they want.With suspense, action, and intrigue lurking around every corner, this fast-paced fantasy series will be a welcome addition for fans of Percy Jackson and Harry Potter. less

In this third and final book in the series that VOYA recommends “for fans of Percy Jackson and Harry Potter,” the war over the Eighth Day continues—and there’s more at stake than ever before.The battle between Kin and Transitioners that’s been brewing for centuries has come to a head. The sinister Kin have captured Addie Emrys, Evangeline’s sister and the Merlin descendant who will allow them to reverse the Eighth Day Spell and free themselves... moreIn this third and final book in the series that VOYA recommends “for fans of Percy Jackson and Harry Potter,” the war over the Eighth Day continues—and there’s more at stake than ever before.The battle between Kin and Transitioners that’s been brewing for centuries has come to a head. The sinister Kin have captured Addie Emrys, Evangeline’s sister and the Merlin descendant who will allow them to reverse the Eighth Day Spell and free themselves. Addie, who doesn’t realize the full consequences of her cooperation, is helping the Kin because they let her use her magic—something Evangeline never did—and the feeling of power running through her veins is impossible to resist. Meanwhile, Riley, Evangeline, and Jax craft a plan to rescue Addie from her captors. But the Kin’s unstoppable magic, plus the fact that Addie may not go willingly, force Riley to reconsider whether saving Addie is worth sacrificing everyone who lives in the seven-day week. Jax won’t accept letting Evangeline’s sister be used as a pawn, so he risks it all in a secret mission of his own. With the Morrigan pushing both sides of the war toward annihilation, Addie must decide with whom to stand, while Jax, Riley, and Evangeline confront the possibility of losing Addie to save the world. Adventure, action, and magic collide to create an unforgettable conclusion to the trilogy that Kirkus called “an inspired series.” less