When J.B. vanishes into the computer, Ryan must go into the virtual world to rescue him from Grimlord's virtual dungeon, and on their return, Grimlord replaces the professor with a holographic double.
Cathy East Dubowski is a narrator, editor, and illustrator. She specializes in novelizations of movies and literary classics for children and young adult readers. Dubowski has written more than 100 books for children, including adaptations of The Aristocats, Frances Hodgson Burnett’s A Little Princess, and Anna Sewell’s Black Beauty.