Susan, Peter and Duncan return in a new book based on their alien-hunting adventures in the bestselling "My Teacher" series by award-winning author Bruce Coville. As the story unfolds, kids help the trio conduct their alien investigations through Mad Lib-style activities, including crosswords, secret messages, translations and secret languages, word search games, alien trivia, fill-in quizzes, alien jokes, top 10 lists, riddles, anagrams, plus a secret code that lets kids access a free demo of the Bruce Coville's "My Teacher Is an Alien" CD-ROM game.