New York Times bestselling author Mira Grant returns with a razor-sharp tale of the horrors that lie beneath . . .

'VISCERAL . . . IRRESISTIBLE . . . a claustrophobic, deep-sea terror tale that will leave readers glad to be safely on dry land' Kirkus

NEW YORK TIMES BESTSELLING AUTHOR MIRA GRANT RETURNS WITH A RAZOR-SHARP TALE OF THE HORRORS THAT LIE BENEATH . . .

Seven years ago the Atargatis set off on a voyage to the Mariana Trench to film a mockumentary, bringing to life ancient sea creatures of legend.

It was lost at sea with all hands. Some have called it a tragedy; others have called it a hoax.

Now, a new crew has been assembled to investigate. And they'll discover that whatever is down there is definitely no joke . . .

Praise for Mira Grant:

'ASTONISHING' New York Times

'GRIPPING, THRILLING AND BRUTAL . . . A MASTERPIECE OF SUSPENSE' Publishers Weekly

'INTELLIGENT AND EXCITING' Telegraph

'MYSTERY, DANGER AND EXCITEMENT ABOUND' RT Book Reviews