Space Taxi: Archie's Alien Disguise

Archie Morningstar's dad drives a taxi through outer space! And with the help of a talking cat named Pockets, Archie and his dad help fight crime across the universe.
In the third book in the series, Archie, his dad, and Pockets visit a planet that resembles medieval Earth in every way but its inhabitants, who have rainbow colored hair and extra eyes. To beat the evil organization B.U.R.P., the trio must disguise themselves as aliens and rescue a princess! When Archie must act on his own, can he find the courage to save the day?