Marco's Millions

By William Sleator

Subjects: Science fiction, Extraterrestrial beings, fiction, Siblings, fiction, Psychic ability, Fiction, Children's fiction, Brothers and sisters, Space and time, Human-alien encounters, Space and time, fiction

Description: Twelve-year-old Marco's love for travel and for his younger sister Lilly, who has psychic powers, leads him to journey to other universes, gaining the ability to go wherever he wishes without growing old.