In the Knight Terrors book most suited to outright horror — Knight Terrors: Knocturnal Creatures, villain and supernatural focused — the writers go for comedy and genre-bending, if not outright parody. There’s a place for that, sure, but particularly given that most of these characters' regular series writers are here, one might expect something more consequential, or at least emotionally affecting in some way. Instead, the stories are often mundane, often predictable, and largely lacking on new insight into the characters. If you wanted to skip a Knight Terrors tie-in book, so far Knocturnal Creatures would be the one to pass on.
Review: Knight Terrors: Knocturnal Creatures hardcover (DC Comics)