"When Bill and John Cotter, formerly of the US Air Force figure out a way to construct an atom-propelled space ship they never dream that on their test flight they will turn history backward as they push science forward..."; Trouble, Inc. is the office of P. J. Colt private eye; "Young Sandy Carter lives with his father and his uncle both fur trappers up in the north woods where the winters are cold and white and the hungry wolves rove in packs....."; Needlenose is an undercover police officer who works with Gramps and Granny the detective gremlins.; The Kaufman family moves into a new house and Little Button Nose gets her nickname.