Eye of the Storm — Frank Cavallo

On a research mission in one of the most remote regions of the world, former Navy SEAL Eric Slade and Dr. Anna Fayne are caught in a mysterious storm. Catapulted through a rift in space-time, they are marooned on a lost world. Struggling to survive and desperate to find a way home, they must confront the dangers of this savage land -- a dark wizard and his army of undead -- a warrior queen and her horde of fierce Neanderthals that stands against him -- and a legendary treasure with the power to open the gateway between worlds, or to destroy them all: the Eye of the Storm.