This is not the best one of the four books in this series. Here our hero takes on cloned Nazis hiding in a mountain and plotting to take over the world and defeats them with the assistance of the Wendigo and other native American allies, and the NSA didn't notice? Simmons introduces some nice ideas like 'bloodwalking' where the hero can take over another body by jumping in through their blood if they have a wound of any sort. Once again he shows off his research skills by having his hero spouting needless reams about the Nazis and their experiments. The book is at its best when the hero is interacting with the other vampires at the end and the way he deals with them was new and inspired. Only buy it if you're a fan of the earlier two.