Mount Dragon is a 1996 thriller novel published by Tor Books. Although not a part of the Agent Pendergast series, it introduces the notorious hacker Mime, who would later appear in several Pendergast investigations.
"Mount Dragon: an enigmatic research complex hidden in the vast desert of New Mexico. Guy Carson and Susana Cabeza de Vaca have come to Mount Dragon to work shoulder to shoulder with some of the greatest scientific minds on the planet. Led by visionary genius Brent Scopes, their secret goal is a medical breakthrough that promises to bring incalculable benefits to the human race. But while Scopes believes he is leading the way to a new world order, he may in fact be opening the door to mass human extinction. And when Guy and Susana attempt to stop him they find themselves locked in a frightening battle with Scopes, his henchmen, and the apocalyptic nightmare that science has unleashed... in Douglas Preston and Lincoln Child's Mount Dragon."
- Mime, the "Thalidomide baby" hacker assisting Levine and Carson, reappeared as an associate of Special Agent Pendergast in the Agent Pendergast series, beginning with Still Life with Crows.
- Following the events of Relic and Reliquary, Margo Green moved to Boston to work for the GeneDyne Corporation, before returning to New York shortly before the events of Dance of Death.