Sometimes it's safer in the dark . . .

Deep beneath the mountains of Mexico lies an abandoned underworld; an ancient and enormous archaeological wonder that dwarfs anything ever created by humanity. Trying to flee from its clutches with a stolen artifact, Sarah Morgan holds the key to exposing an extinct species, once capable of extraordinary cultural and scientific advances. But an unknown terror awaits her in the abyss, something distinctly . . . inhuman.

As Sarah fights for survival, Malcolm Joiner is busy weaving a web of lies. The feared and ruthless director of the GMRC's Intelligence Division has uncovered a shocking truth about Project Ares that not only undermines his authority, but threatens the existence of humanity itself . . .