Hardy Boys: Undercover Brothers: Similar romance series

The 39 Clues

by Peter Lerangis

4.03 · 561 ratings

book · fiction · action-adventure · mystery · young-adult · fantasy · middle-grade · realistic · children · children-books · historical-fiction · audiobook · political-intrigue · suspense · orphans · teens · family · espionage · contemporary · law-enforcement

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The Sisters Grimm

by Michael Buckley

4.29 · 359 ratings

young-adult · retellings · children · humor · fiction · mystery · fantasy · middle-grade · myths · book · fairy-tale · law-enforcement · magic · family · action-adventure · paranormal · audiobook · contemporary · fae · urban-fantasy

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Alex Rider

by Anthony Horowitz

4.13 · 552 ratings

action-adventure · mystery · fiction · young-adult · book · law-enforcement · children · middle-grade · children-books · espionage · political-intrigue · audiobook · crime · contemporary · thriller · realistic · suspense · teens · male-mc · high-school

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The 39 Clues: Cahills vs. Vespers

by Gordon Korman

4.15 · 165 ratings

fiction · mystery · fantasy · espionage · action-adventure · family · law-enforcement · historical-fiction · realistic · children · young-adult · book · audiobook · middle-grade · suspense · political-intrigue · friendship · teens · siblings · children-books

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Moon Base Alpha

by Stuart Gibbs

4.36 · 70 ratings

book · young-adult · political-intrigue · audiobook · middle-grade · space · espionage · futuristic · fiction · action-adventure · children-books · humor · mystery · sci-fi · children · law-enforcement · realistic · suspense · family · friendship

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Masterminds

by Gordon Korman

4.33 · 66 ratings

friendship · outlaws · fiction · children-books · humor · mystery · action-adventure · family · law-enforcement · realistic · sci-fi · children · young-adult · book · audiobook · contemporary · middle-grade · dystopia · survival · cloning

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Enola Holmes

by Nancy Springer

4.04 · 181 ratings

historical-fiction · young-adult · crime · fiction · mystery · historical · law-enforcement · suspense · cozy · audiobook · middle-grade · action-adventure · children-books · female-mc · children · coming-of-age · feminism · family · industrial-era · retellings

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The 39 Clues: Doublecross

by Sarwat Chadda

4.31 · 72 ratings

audiobook · middle-grade · law-enforcement · historical-fiction · children · suspense · action-adventure · children-books · mystery · fiction · young-adult · book · family · historical · fantasy · crime · siblings · espionage · political-intrigue · male-author

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FunJungle

by Stuart Gibbs

4.38 · 124 ratings

book · middle-grade · animals · crime · fiction · action-adventure · children-books · humor · mystery · children · law-enforcement · realistic · young-adult · audiobook · contemporary · anthropomorphism · political-intrigue · espionage · friendship · outdoors

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Mo & Dale Mysteries

by Sheila Turnage

4.17 · 70 ratings

family · friendship · fiction · action-adventure · children-books · humor · mystery · children · law-enforcement · realistic · book · young-adult · orphans · contemporary · audiobook · middle-grade · crime · coming-of-age · animals · female-mc

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All the Wrong Questions

by Lemony Snicket

4.02 · 102 ratings

children-books · humor · fiction · mystery · family · law-enforcement · children · middle-grade · audiobook · action-adventure · fantasy · crime · comedy · young-adult · book · gothic · contemporary · friendship · noir · realistic

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Echo Falls

by Peter Abrahams

3.84 · 49 ratings

teens · children-books · mystery · fiction · crime · action-adventure · family · realistic · law-enforcement · children · high-school · young-adult · book · contemporary · audiobook · middle-grade · killer · animals · horror · sports

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Greenglass House

by Kate Milford

4.06 · 81 ratings

book · young-adult · paranormal · audiobook · middle-grade · fiction · action-adventure · children-books · mystery · fantasy · children · magic · supernatural · family · myths · low-fantasy · retellings · magical-realism · law-enforcement · historical-fiction

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Hardy-guttene

by Franklin W. Dixon

3.83 · 80 ratings

literary · children · male-mc · law-enforcement · book · crime · family · young-adult · children-books · mystery · fiction · classics · action-adventure · suspense · middle-grade · historical-fiction · 20th-century · male-author · historical · realistic

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Framed

by James Ponti

4.46 · 48 ratings

children · political-intrigue · young-adult · realistic · law-enforcement · audiobook · middle-grade · crime · family · book · espionage · fiction · action-adventure · children-books · friendship · humor · mystery · urban · teens · plot-twist

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I, Q

by Roland Smith

4.19 · 95 ratings

young-adult · book · middle-grade · political-intrigue · fiction · action-adventure · children-books · mystery · espionage · law-enforcement · children · suspense · crime · family · siblings · thriller · sci-fi · survival · exploration · friendship

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City Spies

by James Ponti

4.40 · 91 ratings

realistic · law-enforcement · contemporary · audiobook · middle-grade · children · political-intrigue · fiction · young-adult · action-adventure · children-books · friendship · mystery · crime · book · espionage · family · suspense · poc-mc · thriller

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Young Sherlock Holmes

by Andy Lane

3.92 · 74 ratings

young-adult · book · audiobook · middle-grade · fiction · action-adventure · children-books · mystery · crime · law-enforcement · historical-fiction · historical · male-mc · retellings · 21st-century · suspense · teens · children · classics · killer

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Sammy Keyes

by Wendelin Van Draanen

4.18 · 251 ratings

young-adult · contemporary · middle-grade · fiction · children-books · humor · mystery · law-enforcement · realistic · children · audiobook · book · action-adventure · crime · whodunit · family · female-author · friendship · cozy · womens-fiction

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Bad

by Pseudonymous Bosch

4.16 · 38 ratings

mythical-creatures · action-adventure · children-books · humor · fiction · mystery · young-adult · fantasy · book · animals · middle-grade · myths · magic · male-mc · paranormal · retellings · children · friendship · family · audiobook

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Myrtle Hardcastle Mysteries

by Elizabeth C. Bunce

4.19 · 54 ratings

law-enforcement · historical-fiction · historical · children · mystery · children-books · fiction · middle-grade · audiobook · cozy · young-adult · book · victorian · action-adventure · industrial-era · killer · family · crime · romantic-love · murder

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Billionaire

by Richard Newsome

4.03 · 32 ratings

multigenerational · family · book · fiction · young-adult · action-adventure · children-books · mystery · fantasy · children · law-enforcement · middle-grade · crime · friendship · death · supernatural · urban-fantasy · suspense · horror · magic

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The Hardy Boys

by Franklin W. Dixon

3.79 · 1379 ratings

fiction · action-adventure · mystery · book · children-books · classics · literary · children · law-enforcement · middle-grade · young-adult · male-author · psychological · male-mc · family · crime · historical · suspense · historical-fiction · realistic

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