When a strange island rises out of the sea right in front of their ship, Conor McCall and his fellow Recon Marines find themselves within sight of their new home... and fighting for their lives, .
The Deep Ones know about Conor's sword, and they want it. Badly.
Fighting their way out of the ambush, the Marines and their allies find themselves drawn into the quest for the sword's twin, far off to the east.
Others want to take both ancient swords as well, and the Marines find themselves pursued by an empire propped up by sorcery, and opposed by monsters and revenants that have guarded the way to the second ancient, blessed sword for ages.
All will find their mettle tested.
If they survive.