"Mystery Youth fiction." . . . . . . . . . . "Francine Pascal's Sweet Valley twins and friends"@en . . . . . . "The Curse of the Ruby Necklace"@en . "The curse of the ruby necklace (Sweet Valley Twins)" . "Fiction"@en . . "The twins land small parts in a movie being made in Sweet Valley about the mysterious death of twelve-year-old Lillian Keller at the old Keller mansion. Jessica finds an old necklace near the mansion, puts it on, and that very night she has a terrible nightmare about a girl falling to her death. Can a necklace really hold the secret to a murder?"@en . . "Juvenile works"@en . "The twins have small parts in a movie about a mysterious death of a 12 year old."@en . . . . "The curse of the ruby necklace"@en . . .