Amazon Customer - 5.0 out of 5 stars. Great book! I've read all of Joe Shumock's books, and this is the best one yet. It keeps you on the edge of your seat, and it's hard to put the book down. I love that it was located in Prague. Also, there is a great line of characters.

Kirkus Reviews - In Shumock's thriller, a former CIA operative investigates a series of strange deaths that may be linked to a secretive medical facility in Prague ... "Thrives on suspense, with a capable protagonist who''s more spy than detective."

Ruth Mills, M.D. - Where science and truth--stronger than fiction--potentially collide. Well researched, timely and tightly knit.

Don Charest, Retired Securities Broker - This fourth novel in Joe Shumock's Letter Series is the best yet. A superb storyteller, Shumock reaches down into the bottomless pit of what could be and exposes a secret reality to give the reader a glimpse into a scarey future.

Benjamin S. Citrin, M.D., F.A.C.C., F.A.C.P. - Enjoyed this fast-paced thriller. A great read!!!

Pamela Struhbar, Teacher - A mastry of details with a historical backdrop of a Central European country and its people, complete with every twist and turn imaginable, intertwining medicine and romance ... Shumock's best.

Dianne French, Editor - Intriging, thought provolking, and emotional in a setting of love and sadness. This writer, with anticipation and fear, keeps the reader on the edge of their seat.

Ray Lapierre, Lt. Col. (Ret) U.S. Air Force - A thriller unlike any other. A different kind of nail biter.