Choose Your Own Time Machine 13 Secret of the Royal Treasure by Carol Gaskin Secret of the Royal Treasure by Carol Gaskin (Bantam Books, July 1986).
Choose Your Own Time Machine 19 Death Mask of Pancho Villa by Carol Gaskin Death Mask of Pancho Villa by Carol Gaskin (Bantam Books, July 1987).
Choose Your Own Time Machine 21 Caravan to China by Carol Gaskin Caravan to China by Carol Gaskin (Bantam Books, December 1987).