Greer, a surgical pathologist and professor at the University of Colorado Health Sciences Center, has written his fourth mystery novel, this one set in the arena of biomedical research. CJ Floyd, an intriguing African American bail bondsman and private investigator who is the protagonist of Greer's first three works, plays a significant character here. The novel's "biotech" theme concerns telomerase, an enzyme that may control the human aging process, and, in this story, gives athletes a supreme boost of energy. The action begins when an Olympic-level swimmer suffers a seizure after a race and dies. Then a controversial telomerase researcher dies suddenly. Research pathologist Henry Bales conceives of a possible link between these two tragic deaths, and, along with Floyd and others, attempts to get to the bottom of an international conspiracy. Many of the book's characters are quirky, and its storyline is rich in detail and full of tension. A riveting medical mystery