Desert Disaster: Robot Races, Book 4 (Unabridged‪)‬

Jimmy and Cabbie have finally warmed up after their Arctic adventure, and are amazed to be sitting on top of the Robot Races leader board.

Jimmy’s been having a great time getting to know the other racers, and he and Cabbie make a terrific team. But now they’re facing their toughest challenge yet: crossing the Sahara with no navigation system. Can they make it to the finish before the others?