Scavenger by David Morrell

Takes up where "Creepers" leaves off, a few months later.... time capsules lead Frank Balenger and Amanda in a new direction. When Frank wakes up on the beach and Amanda is missing, he makes a diligent search for her. The Game Master has created a "god-like" game with humans as the avatars, he is the controller. Frightening and "techie" Morrell creates a life-like scenario, in a "it could happen" tale. Good sequel to "Creepers." Sandy Penton