The Case of the Missing Library Card
A Dewey Decimal Mystery

About this book:

When the master key to the Oak Creek Library's Restricted Reference Section vanishes from a locked safe, the town council threatens to pull funding for the legendary Summer Reading Program—canceling the all-night lock-in, the pizza, the flashlight ghost stories, and the one thing eleven-year-olds Maya Lin and Leo Gomez live for all year. With only hours until the 2:00 PM inspection, the library's most devoted patrons turn detectives. Maya, a walking encyclopedia of cataloging systems, and Leo, a sharp-eyed observer who notices what everyone misses, follow a trail of clues hidden in plain sight: a Dewey Decimal number penciled beside the safe (025.2—Acquisitions), a smudge of blue wax in the key ring's clasp, and a janitor's story about a perfectly timed blackout.

Every chapter pulls them deeper into a different wing of the library—from the 000s (Computer Glitches) to the 900s (History Repeats Itself)—where each Dewey classification holds a puzzle piece. But the Restricted Room guards more than dusty land grants; someone wants it sealed forever, and they've planned this theft down to the mold made from the master key itself. With suspects ranging from the sour-faced council liaison to the meticulous twenty-two-year janitor, Maya and Leo must decode the library's own organizational logic before the clock strikes two.

*The Case of the Missing Library Card* is a love letter to libraries wrapped in a tightly plotted, clue-fair mystery. Perfect for readers who devour *The Westing Game*, *Escape from Mr. Lemoncello's Library*, or *The Mysterious Benedict Society*, this Dewey Decimal Mystery proves that the best secrets aren't hidden in locked rooms—they're shelved exactly where they belong, waiting for the right reader to find them.