"Nonfiction math concepts are presented as mysteries for readers to solve. With the turn of a page, readers learn how to solve the true math mystery"--Provided by publisher.
"Nonfiction animal information is presented as mysteries for readers to solve. With the turn of a page, readers learn how to solve the true animal mystery"--
"Nonfiction science concepts are presented as mysteries for readers to solve. With the turn of a page, readers learn how to solve the true science mystery"--Provided by publisher.
"Nonfiction history information is presented as mysteries for readers to solve. With the turn of a page, readers learn how to solve the true history mystery"--Provided by publisher.