Blackwater Bride. The Blackwater Vows, #1

Maren Vale has spent her life hiding the one thing that could get her killed-she can hear the dead. In Vale's Crossing, everyone fears Blackwater Bridge. It is old, cursed, and said to lead somewhere no living soul should go. When Maren saves a drowned boy by opening a death-gate, she draws the attention of Prince Soren Ashwick, the cold heir to a throne built on secrets. He needs her magic. She wants nothing to do with him.
But beneath Blackwater Bridge, something ancient is waking.