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The 52 Book Club's 2025 Challenge - hosted by the52bookclub

A crossover (set in a shared universe)
Prompts 28 and 29 are connected. Your book choice for 28 will influence prompt 29.

A shared universe is when two or more standalone stories take place in the same world setting with the same continuity. This means that one story has the potential to influence events in another story, or that characters from one standalone novel may bump into characters from another standalone novel. (Note: This is different than books in the same series, although books from separate series may share a universe.)
 
For this prompt, you may pick a book with a character crossover or character cameo (For example: the main character in book one enters a coffee shop and bumps into the main character from the author's previous novel). You might choose a location crossover (For example: the main character in one book visits or references a bar owned by a character in another book), or the book may reference events or information from another book. Books in a shared universe may or may not share characters.

Examples: Star Wars books, Stephen King's The Dark Tower series (It, The Stand, Salem's Lot, etc), Brandon Sanderson's Cosmere Universe (Elantris, Mistborn, Warbreaker, The Stormlight Archive, White Sand), The Last Bookshop in London and The Booklover's Library, Taylor Jenkins Reid (The Seven Husbands of Evelyn Hugo, Daisy Jones and the Six, Malibu Rising, Carrie Soto is Back), Abby Jimenez books, Marvel comics 
All books added
Rumor Has It by Jill Shalvis

Rumor Has It

Animal Magnetism #4

Jill Shalvis

295 pages • 2013

fiction contemporary romance emotional lighthearted fast-paced
Forever and A Day by Haley Cass

Forever and A Day

Those Who Wait #1.5

Haley Cass

109 pages • paperback • 2020

fiction contemporary lgbtqia+ romance emotional funny lighthearted fast-paced
The Enchanted Greenhouse by Sarah Beth Durst

The Enchanted Greenhouse

The Spellshop #2

Sarah Beth Durst

384 pages • hardcover • 2025

fiction fantasy romance emotional hopeful lighthearted medium-paced
The Arm of the Starfish by Madeleine L'Engle

The Arm of the Starfish

O'Keefe Family #1

Madeleine L'Engle

240 pages • paperback • 1965 user-added

fiction fantasy science fiction young adult mysterious fast-paced
Midnight in Chernobyl: The Untold Story of the World's Greatest Nuclear Disaster by Adam Higginbotham

Midnight in Chernobyl: The Untold Story of the World's Greatest Nuclear Disaster

Adam Higginbotham

538 pages • hardcover • 2019

nonfiction history science challenging informative tense slow-paced
Chaos Rising by Timothy Zahn

Chaos Rising

Star Wars: The Ascendancy Trilogy #1

Timothy Zahn

400 pages • digital • 2020

fiction fantasy science fiction adventurous medium-paced
The Woman in Suite 11 by Ruth Ware

The Woman in Suite 11

Lo Blacklock #2

Ruth Ware

387 pages • digital • 2025

fiction thriller mysterious tense medium-paced
The Sum of All Kisses by Julia Quinn

The Sum of All Kisses

Smythe-Smith Quartet #3

Julia Quinn

9 hours, 36 minutes • audio • 2013 user-added

fiction historical romance funny lighthearted medium-paced
The Fall of the House of Usher by Edgar Allan Poe

The Fall of the House of Usher

Edgar Allan Poe

36 pages • paperback • 1839

fiction classics horror short stories dark mysterious tense fast-paced
Mistborn: Secret History by Brandon Sanderson

Mistborn: Secret History

Mistborn #3.5

Brandon Sanderson

176 pages • hardcover • 2016

fiction fantasy adventurous mysterious fast-paced