Beyond The Knock Knock Door

Triplet adventurers answer a riddle and embark on a roller-coaster ride of mystery, suspense and intergalactic heroics. ''Knock, knock!'' ''Who''s there?'' ''Triplets!'' ''Triplets who?'' ''Triplet adventurers who answer a riddle and embark on a roller-coaster ride of thrills, spills and superheroes.''

The Bowman triplets always attract trouble. So when twelve-year-olds Michael, Luke and Samantha r...