
#34 in Horror
Into the Drowning Deep
- 527
- Pages
- about 10 h
- Reading time
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About the book
Into the Drowning Deep is a 2017 science fiction horror novel by Mira Grant. It is the follow-up to her 2015 novella Rolling in the Deep. It focuses on Tory Stewart, a sonar specialist who becomes obsessed with mermaids after her sister's disappearance. Tory's sister Anne worked as a reporter for Imagine Entertainment. While filming a mockumentary about mermaids, the crew of Imagine's ship Atargatis vanished. Tory vows to discover the truth about what happened to her sister.
Where the score comes from
The sources average 7.8 across 249 ratings — not yet many, so the reader vote carries 62% of the weight and the rest pulls toward the Horror average of 7.5. That is how 7.8 comes out.
| Source | Average | Ratings | Weight |
|---|---|---|---|
| Open Library | 7.6 | 9 | 4% |
| Hardcover | 7.9 | 240 | 96% |
Reader voices
The most-liked reviews on Hardcover (credited to their authors).
“Outstanding, riveting. Full of fun characters and action. I loved the prequel novella, and this was such a treat to read as it's a proper-sized novel. The characters were great.”
Frequently asked
How long is Into the Drowning Deep?
It has 527 pages — longer than 70% of the ranked books in Horror.
In this book
Themes this book shares with others — each leads to the best books on it.
If you liked this
Same shelf — Horror — with scores between 7.7 and 8.0, closest to this book.





