There was a place below the dam called a stilling basin, a sort of pond below the churning tailwaters, an area for the water to spread out in during flood season, to calm itself before it roared toward town. It was known as the Dead Waters because it was one of the few places where you could still see the remnants of the gutted, burned-out foundations of old Galesburg, which had been torched before the reservoir filled. Most of the area beneath the lake had been farm fields and isolated homesteads, but below the Dead Waters were the remains of an old town hall, two churches, and a school.
In a dry year, when the water was low and the sunlight slanted at the perfect angle, you could see the silhouettes of the ancient structures below, particularly one tenacious church steeple that reached for the reservoir's surface like it was trying to gasp a last breath.
Or grasp someone from above and pull them down below.
I really enjoyed the first half of this book, but pacing issues had the second half dragging - I agree with the other reviewers who've mentioned it's just too long. At the core though, is a great, creepy concept that's worth the effort to finish.
Surrounding the dam are a cast of characters with various links to it and the towns that lie below, either submerged or otherwise. Great characters, too, who felt easy to connect to, though for some I'd like to have seen more. As always with horror, the more you care the higher the tension, and for some I needed to have that built up more. The central 4 or 5, though, I was rooting for!
As I mentioned, that first half was fantastic - it moved around between characters and locations in a well-balanced loop that slowly circled the dam and pulled them all in closer to the ominously telegraphed day of reckoning. The tension built, but enough room was left that I wasn't sure if we were going the route of "bad guys win, everyone dies" or "heroic fuckup turns life around and saves day" - it genuinely could have gone either way, and plausibly. But the middle struggled with being a slog, and I actually ended up putting it down and having to read the first half again when I eventually picked it up to finish. It reinforced my good impression of the start, but it felt like an accomplishment to finish.
I would say it's worth the read to get through it, anyway - just look at how much I've written in this review, I never go on this long. I'd be interested in checking out this author again.