A review by chippyreads
Into the Drowning Deep by Mira Grant

5.0

 Powerful kick in the guts that I couldn't put down.

Film company sends crew to the Mariana Trench to film a mockumentary about mermaids.

All die.

Years later same film company sends more people and research crew to film/find mermaids.....

Horror/Thriller with a big cast of diverse characters.
More reasons to hate open water....