With the Vatican in turmoil, SIGMA Force leaps into action. An elite team of scientific and Special Forces operatives under the command of Grayson Pierce and accompanied by Lieutenant Rachel Verona of Rome's carabinieri, they are pursuing a deadly mystery that weaves through sites of the Seven Wonders of the World and ends at the doorstep of an ancient, mystical, and terrifying secret order. For there are those with dark plans for the stolen sacred remains that will alter the future of humankind . . . when science and religion unite to unleash a horror not seen since the beginning of time.

The bones lead to ancient mysteries and present-day terror . . . To follow them means death.