Silas Grey is finished fighting the good fight. Been there, done that, bought the T-shirt - for both Uncle Sam and Christ's Church. He's got the scars to prove it - personal ones and physical ones that go deep.

So he has taken leave of the Order of Thaddeus, handing his Master reins over to his wife, Celeste Bourne. He's also returned back to his first love: the classroom. That's when everything changes - in the world, in his world.

Which ignites a riddle, wrapped in a mystery, inside an enigma that forces him to do the one thing he left behind - the one thing that brought so much personal pain. Fight to protect the Church.

Not only that, a series of events rock the world that force him to fight for humanity itself. Confusing events that provoke him and his SEPIO agents along with the rest of the world to ask the unthinkable: Is this the end of days?

Stepping up to the plate to offer an answer is a charismatic figure with an enigmatic past who promises humanity their salvation - joining his hopeful message with signs and wonders that threaten to lead the world astray.

In a race against time, Silas and SEPIO must not only discover what this rising power means for the Church - for the very souls of humanity. They must also stop it before it fully manifests itself and drags those souls to hell.

Long time fans will discover a surprising family secret long buried. New readers will devour this briskly paced action-adventure page-turner leveraging the familiar conspiracy suspense of Douglas Preston & Lincoln Child and Steve Berry, wrapped in the special-ops thrill of Clive Cussler and James Rollins.

Join SEPIO in this harrowing mystery fighting for the Church's faith and humanity's soul!