The Secret at Solaire — Carolyn Keene

IN SEARCH OF A SABOTEUR, NANCY FINDS THAT EVERY DESERT TRAIL LEADS TO DANGER....

Nancy, Bess, and George are spending a week at the exclusive Spa Solaire outside Tucson, Arizona -- a place for relaxation, rigorous exercise, and complete beauty make-overs. But they soon discover a much more sinister aspect to the Solaire program when an unexpected visitor welcomes them to their cabin: a poisonous black widow spider!

Every new activity poses a new risk to the staff and guests -- beginning with sabotage and ending in kidnapping. The key to the case is Jacqueline Rozier, the world-famous model who runs Solaire. But what is she afraid of, and what shocking truth is hidden in her past? Nancy must find the answers before the desert campaign of terror takes its final, fatal twist!