When Margo misreads a roadmap while travelling by car through France, her husband Alan flies into one of his usual rages. Tired of his constant bad moods, Margo slips away from him at a motorway café. She hitches a lift with a woman truck driver and escapes into the French countryside. What follows is adventure and romance far beyond her wildest dreams. Will Alan find her before she finds herself?
Hidden deep beneath Manhattan lies a warren of tunnels, sewers, and galleries, mostly forgotten by those who walk the streets above. There lies the ultimate secret of the Museum Beat. When two grotesquely deformed skeletons are found deep in the mud off the Manhattan shoreline, museum curator Margo Green is called in to aid the investigation. Margo must once again team up with police lieutenant D'Agosta and FBI agent Pendergast, as well as the brilliant Dr. Frock, to try and solve the puzzle. The trail soon leads deep underground, where they will face the awakening of a slumbering nightmare.
Just days before a massive exhibition opens at the popular New York Museum of Natural History, visitors are being savagely murdered in the museum's dark hallways and secret rooms. Autopsies indicate that the killer cannot be human... But the museum's directors plan to go ahead with a big bash to celebrate the new exhibition, in spite of the murders. Museum researcher Margo Green must find out who-or what-is doing the killing. But can she do it in time to stop the massacre?