by
John Fardell
Language: English
Release Date: September 7, 2006
When Sam visits Zara and Ben and their great-uncle, the quirky inventor Professor Ampersand, he never expects to embark on a fantastical adventure. But when Professor Ampersand and his group of professor friends are kidnapped by the evil Professor Murdo, it's up to Sam, Zara, and Ben to save them....