And it's a whiz-bang version, indeed. While it pretty much sticks to the same locations as the version we get in Shelley, it's a lot different. We learn that how Freidrich's brain came to be in its strange new body and why he burns to take revenge on Frankenstein. While he's still in the lab, Freidrich "meets" Charlotte, of whom nothing remains but a toothless head (the Marquis de Sade has some ideas for her). When Freidrich escapes, he travels over a lot of Europe and meets up with vampires, Satanists (who think he's what they've been waiting for), and even a few good people. Even at that, his relationships never end well, though no fault of his own.
Zeltserman got a lot of acclaim for his horror novel The Caretaker of Lorne Field. Monster is a very different kind of book, but it's just as exciting. When awards season rolls around, this one's going to be a major contender.