For fans of Timmy Failure and Dog Man

comes the fourth wacky adventure in the Tim Possible chapter book series about two best friends and a time-traveling T-Rex who go on an interdimensional escapade!

Tim and his best friends Tito and Oskar, the time-traveling T-Rex, are between dimensions. Will Tim gain his ultimate power? Will Oskar ever return to the time of the dinosaurs? Will Tito ever discover the perfect bocadillo? However their missions end up, they’re sure to be out-of-this-world!