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Murdle Jr.: Codes, Cover-Ups, and Cookies

Coming Soon

Contributors

By G.T. Karber

By Wendy Mass

Formats and Prices

On Sale
Jul 14, 2026
Page Count
224 pages
ISBN-13
9780316582285

Price

$9.99

Price

$12.99 CAD

Inspired by the internationally bestselling Murdle phenomenon, comes the second novel in the thrilling mystery series for fans of The Candymakers and The Swifts

Olivia is literally the world's smartest detective. She can hack into any computer, get past any firewall, download anything she wants, and that’s why she is so incredibly excited to spend the summer doing an independent work-study program at her father’s company.

Olivia's father is the owner of the largest and most powerful company in the world, TekCo Futures. And he's about to debut an Artificial Intelligence supercomputer that will change the world forever. But when Olivia's father collapses on the night before the big release, it's up to Olivia—and her arch nemesis—to solve the mystery and unmask the criminal behind it all! 

Trouble comes to Tekco, and mysteries haunt its Metaverse. Can Olivia crack the case?

SOLVE THE PUZZLES: 
Curious Crimes for Curious Minds 
Ready, Set, Solve!

Wild Goose Case

ENJOY THE MINI'S:
Summer Fun

READ THE MYSTERIES: 
Sleuths on the Loose
Codes, Cover-Ups, and Cookies

G.T. Karber

About the Author

G. T. Karber grew up in a small town in Arkansas, the son of a judge and a civil rights attorney. Now, he is a mystery writer, computer programmer, and the creator of Murdle, the USA Today and #1 Sunday Times bestselling murder-mystery puzzle book series, now in 28+ languages.

Learn more about this author

Wendy Mass

About the Author

Wendy Mass is the New York Times bestselling author of The Candymakers, the ALA Schneider Family Award winner A Mango-Shaped Space, Leap Day, Jeremy Fink and the Meaning of Life, Heaven Looks a Lot Like the Mall, and Every Soul a Star. Wendy lives in New Jersey with her husband and their twins. Her website is http://www.wendymass.com.

Keiko Nishijima is a comic illustrator based in Georgia. She grew up with a love for the arts and has been drawing since she was young. After graduating in 2023 from SCAD, she's still doing what she loves, but gets paid for it too sometimes.

Learn more about this author