Charlie Piechart and the Case of the Missing Hat

Charlie Piechart’s second math mystery takes place at school—when a purple, sparkly cone-shaped princess hat goes missing! Margot needs her hat in time for the school play (today!), so Charlie and his dog companion, Watson, are on the case—finding evidence of sparkles and purple paint and keeping on the lookout for geometric clues that might lead to the missing hat.

Fantastic colors, clever characters, and beginning concepts in geometry will go down easy as pie, while activities at the end of the book will reinforce the shapes and the story. Dynamic duo Eric Comstock and Marilyn Sadler bring the right level of energy and entertainment for this engaged picture book audience.

"Charlie! Help!” Charlie’s friend Margot is missing her hat. ”It’s a princess hat—purple and cone shaped. I need it for tonight’s play!”

With Watson along, Charlie searches for clues all over school. They find a cylinder-shaped hat and a half-sphere hat and lots of purple sparkles, but it’s shaping up to be a tough case. . . .

Will Charlie and Watson find Margot’s hat before the play begins?

Three Cheers for Charlie Piechart and the Case of the Missing Pizza Slice

”A lighthearted tone and newcomer Comstock’s playful graphics, which have a weathered, retro quality, make the lesson go down as easy as pie.”—Publishers Weekly

”Kids will have fun following Charlie as he solves the mystery and reinforce their fraction skills along the way.”—Kirkus Reviews

Praise for CHARLIE PIECHART AND THE CASE OF THE MISSING PIZZA SLICE: “A lighthearted tone and newcomer Comstock’s playful graphics, which have a weathered, retro quality, make the lesson go down as easy as pie.” - Publishers Weekly

Praise for CHARLIE PIECHART AND THE CASE OF THE MISSING PIZZA SLICE: “Debut illustrator Comstock’s digital artwork is a retro-modern throwback. Kids will have fun following Charlie as he solves the mystery and reinforce their fraction skills along the way.” - Kirkus Reviews