The action and adventure continue with Archaeologist Dan Kotler and his FBI partner, Agent Roland Denzel.Historic Crimes-the FBI's new division for tackling threats with a historical or mythological element. Dr. Dan Kotler and Agent Roland Denzel find themselves in more trouble, with only the two of them to rely on.This time, the threats come from those they trusted most.This collection contains books 4-6 of the Dan Kotler Archaeological Thrillers.