It isn't bad enough that Willis has to live with his cold uncle Tod in a dusty old house of used books. He can't even spend time with his friends Harrison and Galaxi because of the nasty after-school jobs his uncle makes him take on. But then his uncle asks him to visit an old widow lady in the mansion on the hill. To his surprise, Willis likes Mrs. Shorthouse and even the books they read together (Little Women, Great Expectations). Meanwhile, taking a rowboat ride, Willis discovers an abandoned town from the 1950s populated by square-headed robots. What is the connection between Mrs. Shorthouse and Robot Island? What will happen after the police find out that Willis has been stealing rare books from the mansion? And when Willis turns on the electricity and the robots of Robot Island come to life, will they turn out to be friends or enemies?