Educational manga with a science and adventure theme - Series Name: Science Survival Series: Time Warp - Number of Volumes: 13 - Language: Japanese - Author: Han Hyun-dong - Publisher: Gakken Plus - Target Age: Elementary school students - Features: Picture books with a science and adventure theme - Condition: Used Please purchase if you understand the condition. These are second-hand books read by a child. My child, who wasn't particularly fond of books, enjoyed reading these. Thank you for looking.