Watersleep — James Axler

THROUGH FIERY HELL
In the altered reality of the Deathlands, America's coastal waters haven't escaped the ravages of the nukecaust, but the awesome power of the oceans still rules here. It's a power that will let Ryan Cawdor, first among postholocaust survivors, ride the crest of victory--or consign his woman to the raging depths.

AND HIGH WATER
Emerging from a gateway on the ruins of the Georgia coastline, Ryan Cawdor and his warrior survivalists embark on a voyage up the Atlantic coast. But treachery awaits as they're beset by pirates, then a violent storm that pulls Krysty Wroth and Jak Lauren beneath the waves. Now Ryan must contend with a self-proclaimed lord of the sea as he struggles to reclaim what's his from a watery grave.

In the Deathlands, there's no waking from the nightmare...