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![Charlie Piechart and the Case of the Missing Hat by Marilyn Sadler, Eric Comstock](https://558130.bdp32.group/rails/active_storage/representations/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBCUE5yQUFFPSIsImV4cCI6bnVsbCwicHVyIjoiYmxvYl9pZCJ9fQ==--dd9be65745699eb811f875c9ee13e616823b35fb/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaDdCem9MWm05eWJXRjBTU0lJYW5CbkJqb0dSVlE2RkhKbGMybDZaVjkwYjE5c2FXMXBkRnNIYVFJc0FXa0M5QUU9IiwiZXhwIjpudWxsLCJwdXIiOiJ2YXJpYXRpb24ifX0=--038335c90cf75c275ae4d36968ac417dc4a0a3e3/Charlie%20Piechart%20and%20the%20Case%20of%20the%20Missing%20Hat.jpg)
40 pages • first pub 2015 (editions)
ISBN/UID: 9780062370563
Format: Hardcover
Language: English
Publisher: HarperCollins
Publication date: 04 October 2016
Description
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--findi...
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![Charlie Piechart and the Case of the Missing Hat by Marilyn Sadler, Eric Comstock](https://558130.bdp32.group/rails/active_storage/representations/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBCUE5yQUFFPSIsImV4cCI6bnVsbCwicHVyIjoiYmxvYl9pZCJ9fQ==--dd9be65745699eb811f875c9ee13e616823b35fb/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaDdCem9MWm05eWJXRjBTU0lJYW5CbkJqb0dSVlE2RkhKbGMybDZaVjkwYjE5c2FXMXBkRnNIYVFJc0FXa0M5QUU9IiwiZXhwIjpudWxsLCJwdXIiOiJ2YXJpYXRpb24ifX0=--038335c90cf75c275ae4d36968ac417dc4a0a3e3/Charlie%20Piechart%20and%20the%20Case%20of%20the%20Missing%20Hat.jpg)
40 pages • first pub 2015 (editions)
ISBN/UID: 9780062370563
Format: Hardcover
Language: English
Publisher: HarperCollins
Publication date: 04 October 2016
Description
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--findi...