"Geronimo Stilton Journey Through Time #6: Test of Time" is a juvenile fiction book published by Scholastic, Incorporated in 2019. The hardcover book, featuring illustrations by the author himself, follows the adventures of Geronimo Stilton as he travels through time to solve mysteries involving animals like mice, hamsters, and guinea pigs. With a storyline that combines action and adventure with elements of time travel, this book is sure to captivate young readers with its engaging plot and charming characters."
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