On a small wind-swept island in the remote Northwest Moonshae isles, a terrible storm will soon destroy all life there with poison and corruption. A monstrous evil from the deep drives it forward to the shores: a fey resembling horse and man and yet clearly neither.
You and your party have survived the destruction of your ship in that storm only to arrive on Sea Mother Island surrounded by the storm's relentless approach, somewhere on the island, the monster and its servants wait for you.
On your journey to stop this devastation, you may make the ancient dead your ally, rediscover a lost song, or through your own resourcefulness, drive the dread sea devil away and put an end to its suffering and death of the local people, perhaps all the Moonshae islands.
You have not much time heroes, this grand task must be done before sunrise or all is lost, including your own lives. Death comes on the hooves of the legendary sea fey, the Nuckleavee.
- from the publisher's blurb