Carolyn Keene

Nancy becomes suspicious of a secret society and is drawn to investigate.

Nancy arrives in Phoenix, Arizona, eagerly looking forward to a fun-filled vacation at Shadow Ranch, but abruptly finds herself involved in a baffling mystery. The ranch is being haunted by a phantom horse and maliciously damaged by an unknown enemy.

An anonymous diary is a mystery with handwriting that is difficult to decipher. It is filled with technical drawings and chemical formulas. Was the destructive explosion an accident or an act of revenge?

Nancy Drew investigates a mean valentine sent to one of the Clue Crew.

Once again Nancy Drew is involved in a mystery as she tries to locate an archaeologist who disappeared with the clues to a buried treasure.

Nancy, Bess, and George are Mimsy Bourret's VIP guests to the flower show where she will showcase her roses, but when the prized flowers go missing, the girls investigate.

"Scott cut himself off abruptly as he noticed me standing there, staring at him. Clicking the phone off, he glared at me. His face was twisted with anger, making him look like a completely different person than usual. He took a quick step toward me. I clutched the railing behind me - the only thing between me and a two-hundred-foot drop to my certain death. "You!" Scott growled. "What are you doing out here?"--Page [4] of cover.

Nancy tries to find who has tried to ruin the slumber party Rebecca Ramirez planned.