Chaos erupts at the Hollybrook Museum when a mummy mysteriously disappears from the ancient Egyptian exhibit. The situation escalates further as a well-respected professor is found dead, strangled with a seemingly authentic mummy wrapping. The unsettling nature of these events grips the entire institution, spreading suspicion and fear among the staff. In the midst of this turmoil, young Peter Convey becomes deeply involved in the unfolding mystery. As tensions rise, Peter realizes he must unravel the series of troubling incidents to reveal the truth behind both the missing artifact and the professor's tragic demise.