This novel has nuggets of interest, but the story and action feel contrived at every turn. It has the aura of someone trying to write a good mystery story rather than the aura of a good story. Like a movie in which the director's gimmicks are visible, the authors' mechanics are visible on page after page. The tributes "quoted" on the cover are misleading. This is not an enjoyable read, and the ending was like a last straw insult to the dogged reader who persevered and read the whole book. Ouch.

This book's authors try to promote the use of shark cartilage to cure cancer, but they use bad science. In fact, as any zoologist or marine biologist will tell you, sharks do get cancer! So much for accurate research. This book's information is dangerous for two reasons: 1) people may use this unproven treatment when they need traditional medicine, and 2) many sharks are being unnecessarily killed for their cartilage. A dangerous book and a waste of money.