TY - BOOK N2 - Commander Gray Perce and the Sigma Force confront humankind's greatest threat in an adventure that races from the Roman Coliseum to the icy peaks of Norway, from the ruins of medieval abbeys to the lost tombs of Celtic kings. The ultimate nightmare is locked within a talisman buried by a dead saint--an ancient artifact known as the Doomsday Key--and a secret that has already claimed the lives of a famed geneticist, a Vatican archaeologist, and a U.S. senator's son. N2 - The Sigma Force must solve a centuries-old secret involving coded prophecies about dark events leading to a future apocalypse. AB - Commander Gray Perce and the Sigma Force confront humankind's greatest threat in an adventure that races from the Roman Coliseum to the icy peaks of Norway, from the ruins of medieval abbeys to the lost tombs of Celtic kings. The ultimate nightmare is locked within a talisman buried by a dead saint--an ancient artifact known as the Doomsday Key--and a secret that has already claimed the lives of a famed geneticist, a Vatican archaeologist, and a U.S. senator's son. AB - The Sigma Force must solve a centuries-old secret involving coded prophecies about dark events leading to a future apocalypse. T1 - The doomsday key :a [upper case Greek letter "sigma"] Sigma Force novel / DA - 2010, c2009. CY - New York : AU - Rollins, James, CN - Rollins PB - Harper, PP - New York : PY - 2010, c2009. N1 - Originally published: New York : William Morrow, c2009. N1 - Includes an excerpt from the author's "The devil colony". ID - 345560 KW - Conspiracies KW - Secret societies KW - Code and cipher stories. SN - 9780061231414 SN - 006123141X TI - The doomsday key :a [upper case Greek letter "sigma"] Sigma Force novel / ER -