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 it sown there is definitely no joke...
By Mira Grant. Paperback, 486 pages. Published by Orbit, 2017.