The voyage of the Atargatis set off on a journey to the Mariana Trench to film a 'mockumentary' bringing to life ancient sea creatures of legend. She was lost at sea with all hands. Some have called it a hoax; others a maritime tragedy.

Now, a new crew has been assembled. But this time they're not out to entertain. Some seek to validate their life's work. Some seek the greatest hunt of all. But for the ambitious young scientist Victoria Stewart, this is a voyage to uncover the fate of the sister she lost.

Whatever the truth may be, it will only be found beneath the waves.

But the secrets of the deep come with a price . . .

New York Times bestselling author Mira Grant takes us on a journey into the unknown in this gripping stand-alone novel in which myths come to life.