Sleator, William

To end the bad luck that fifteen-year-old Dom and his parents have been experiencing since their arrival in Thailand, Dom and his new friend Lek search for a jade carving that must be returned to its shrine to appease an angry Thai spirit.

Living in a dreary new home with his father dead, his mother hospitalized, and his grandfather increasingly distant, fourteen-year-old Isaac's wish for someone to reach out to him comes true in the form of a phantom arm that appears in a mirror box designed to help amputees, warning of danger.

A boltzmon, remnant of a black hole, materializes in eleven-year-old Chris's bedroom and transports him to a parallel world, where he encounters the bitter woman his overbearing older sister will become, after his death, if he cannot convince her to change.

Max finds himself in possession of a time travel device which is eagerly sought by two desperate men--the scientist who invented it and the scientist's alter ego from a different timeline.

When Laura discovers that the unpopular boy living next door to her has the ability to go into the fourth dimension, she makes the dangerous decision to accompany him on his journeys there.

When two youngsters realize they are having the same frightening dream, they begin searching for an explanation for this mysterious coincidence.

Barney's boring seaside vacation suddenly becomes more interesting when the cottage next door is occupied by three exotic neighbors who are addicted to a game they call "Interstellar Pig.".

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.

When fifteen-year-old Doug and his younger sister Colette move with their parents to a forested wilderness area, they encounter some weird creatures whose lives are endangered.

Eighteen-year-old Sam falls in with his mother's bizarre scheme to revitalize his younger brother's flagging career as a piano prodigy, and agrees to compose "new works" by a long dead composer and present them to his brother as the dictations of a ghost.