Crucible

In this mind-blowing adventure written by the #1 New York Times bestselling author, Sigma Force must battle the deepest spiritual riddles of humanity in the quest to save one of their own. His signature blend of cutting edge technology, historical mystery, and heart-pounding action will keep readers engaged.

When Commander Gray Pierce returns home on Christmas Eve, he finds his pregnant lover missing, his house broken into, and his closest friend Kat unconscious on the kitchen floor. As the lone witness to what transpired, Kat represents his only hope of finding the lady he loves and his unborn child in the absence of any further evidence. But the injured woman is unable to talk and is in a semi-comatose state until a gifted neurologist suggests a drastic method to "unlock" her mind long enough for her to ask a few questions.

The information that Pierce gains from Kat sends Sigma Force on a mad dash to uncover riddles that date back to the Spanish Inquisition and one of the most hated and bloodied books in human history: the Malleus Maleficarum, often known as the Hammer of Witches. What they unearth from the shadows of the past will expose a horrifying reality of the present and an impending catastrophe of the future, forcing them to face the most important issue of all: What does it mean to be human?