(Combined review of all 3 books, as I feel it was written as one book but split into three parts)
I enjoyed this series! It has a slightly different view on the story, as the zombie invasion has already happened many years in the past. But of course it turns out that they zombies aren't gone for good, they were just buried in the hope no one would ever find them.
The story has some interesting characters in it, and I liked that the zombies worked as a hive (hence the name of the books I suppose ;), with a queen to lead them. This made the zombies more difficult to run away from as they were able to send signals between each other and one zombie on the chase would quickly turn into a horde.
I think these books are well worth a read if you enjoy zombies! :)