An adventure series filled with suspense, mystery, and fantasy - for kids ages 9-12 and teens Note: The paperback edition collects books 10-12 in a single volume and is not a boxed set. Even though Xavier is locked away, his ruthless and dedicated followers refuse to give up on the dream their leader has been working so hard to achieve. Xavier's minions, under new leadership, concoct a brilliant plan to make their imprisoned boss's goal to rule the universe become a reality. Peter and his team, miraculously, see a tiny window of opportunity to even the odds in this upcoming showdown of good versus evil. But to take advantage of this chance, they'll have to successfully navigate high-risk missions, and conquer some of the scariest and most mystifying puzzles they've ever faced... Get all 3 books for the price 2 in a single volume! This Puzzled Series Collection includes: - Astonishingly Puzzled (The Puzzled Mystery Adventure Series: Book 10) - Overwhelmingly Puzzled (The Puzzled Mystery Adventure Series: Book 11) - Extraordinarily Puzzled (The Puzzled Mystery Adventure Series: Book 12) The Puzzled Series is a one-of-a-kind mystery adventure that will capture the interest of kids, teenagers, and adults. You'll be scratching your head as you try to solve the puzzles and riddles along with the characters!