"Taut and suspenseful" (Kirkus Reviews): Grief-stricken after their daughter's death, Dr. Dagny Steele and her husband set sail across the Indian Ocean - but can they survive the terror ahead? "Definitely not for the faint of heart" (New York Times bestselling author Steve Berry).

"An expertly paced psychological thriller on the high seas." -Best Thrillers

Trapped on a storm-damaged yacht, a grieving woman must conquer her worst fears and fight for her life, in a story described as The Shining on a yacht. Dr. Dagny Steele is on the verge of fulfilling her lifelong calling to become a pediatric surgeon when the sudden death of her daughter sends her into a crushing depression.

Grief stricken and desperate to heal, she takes a leave of absence and sails across the Indian Ocean with her husband. Dagny begins to recover from her tragic loss when her voyage turns into a nightmare.

Isolated and hunted at sea, can she survive a deadly crucible?