A brand new story from James Preller, creator of the Jigsaw Jones chapter book series, this never-before-published mystery is sure to intrigue and delight young minds in equal measure.

Someone’s been stealing from the lost and found. But the strangest part of this mystery is what they’ve been stealing. Not mittens, or books, or water bottles—only hats! Just when Jigsaw comes up with a plan to catch this hat burglar in the act, the mystery thief strikes again right under his nose! Will this be the first case Jigsaw and Mila can’t solve?

Also on Spring 2019, we are reissuing four books from the original series: The Case of the Bear Scare, The Case of the Golden Key, The Case of the Haunter Scarecrow, and The Case of the Vanishing Painting.

Featuring friendship, school, family, and a diverse community, these early illustrated chapter books are now available for a new generation of young readers, with a fresh package and classic illustrations from R. W. Alley