by Judith Gorog (1983)
While on a trip to California with her father, Kate befriends a small girl who may be merely the victim of her own active imagination or may be in real danger.
Sherri L. Smith
Bad things happen everywhere. Even in the land of sun and roses. When Jude's best friend is found dead in a swimming pool, her family calls it an accident. Her friends call it suicide. But Jude calls it what it is: murder. And someone has to pay.
Carolyn Keene
Nancy Drew and friends Bess and George track a group of swindlers and kidnappers from New York to Mexico City to Los Angeles where they finally solve the mystery of the Triple Hoax.
Donald J. Sobol
America's Sherlock Holmes in sneakers continues his war on crime in ten more cases, the solutions to which are found in the back of the book.
Joseph Rosenbloom
A collection of fourteen "case histories" which Maximilian, the amazing twelve-year-old Manhattan detective, was instrumental in solving.