One week after she starts her summer job on Fear Street with old Mrs. Cottler, Mayra Barnes begins to sleepwalk, always waking up outdoors in the middle of the night never knowing where she is! Things take a disturbing turn when Mayra discovers Mrs. Cottler may be a witch. Is the old woman casting a spell on Mayra to make her sleepwalk? More horrifying, Mayra is being followed by a menacing stranger who seems to recognize her. But she's never seen him in her life! Mayra's sleepwalking is leading her into more and more peril. She soon realizes she must take action. She must find out what is happening to her--or she may never leave Fear Street alive!