A review by booksnorkel
Aenir by Garth Nix

4.0

In this book Milla and Tal go into the spirit world to find the Codex. A living book that knows all, they wish to use it to find out what is happening in the castle, and where Tal's brother is. Tal knows that the castle is no longer safe, and that for reasons unknown powerful Chosen have decided that he is an enemy that needs to be destroyed. While in this world the dangers are too many to count Milla and Tal accidentally manage to activate magic and because of this Tal has to save them at the cost of Milla's life dreams. They go their separate ways and both encounter deadly beings that have no love of Chosen or Icecarls. They have to work together to retrieve the Codex but can Milla forgive Tal for ruining her life?