The Flying Saucer Mystery Author:Carolyn Keene Nancy, Bess, George and their boyfriends are investigating reports of a fling saucer. But before they can trace the UFO, they run smack into another mystery - involving a buried treasure. — Excitement mounts as Nancy and her friends try to solve not one- but two- strange mysteries in this latest suspense-filled Nancy Drew Adventure. — (NOTE: This... more » book's ISBN is incorrectly listed in the PBS system as hardcover.)« less