In the book Hoot, Roy's bicycle is taken by Beatrice Leep.
Roy had ridden his bicycle to the golf course, where he had hoped to find a mysterious running boy who calls himself Mullet Fingers. Mullet Fingers had been camped by the golf course, and Roy had hoped to find him again to give him some sneakers. Roy had left his bike near a water fountain and gone into the underbrush surrounding the golf course on foot. Sadly, Mullet Fingers' camp was gone, and when Roy returned to retrieve his bicycle, he found that it was missing as well.
Furious at himself for having left his bike unattended and unsecured, Roy begins to walk home, in the pouring rain. When he reaches the highway, he is accosted by a schoolmate, Beatrice Leep, who is riding his missing bike. Beatrice, who is bigger than Roy, orders him to hop onto the handlebars, and she takes him for a ride.
Beatrice takes Roy to the junkyard, where Mullet Fingers has apparently set up a new camp. Beatrice asks Roy why he cares about Mullet Fingers, and reveals that he is her brother. After making Roy promise not to tell anyone that Mullet Fingers is in the area, Beatrice "astounding(ly)" bites a hole in one of his bike tires, so that Roy will have an excuse for being late, and won't get in so much trouble with his parents. She then sends him on his way (Chapter 7).