Forest of shadows is a surprisingly well-written, pretty fantastic book all on it own, in addition to being a Frozen book. It's set between the films (1&2) and does a great job expanding the world and weaving in Scandinavian mythology in a pretty-good adventure plot involving uncovering secrets, a really intriguing new antagonist, surprisingly well-done fast-paced action, and a great climax. This is basically Disney's take on a Zombie-apocalypse narrative in the Disney Princess Canon, and although I think that description might raise eyebrows, all the zombie genre set-pieces are there, disneyfied. Benko does a fantastic job of capturing both the 'voice' and character of the main cast from the films, but every other character in the book is pretty flat and under-developed, which was a real shame. And unfortunately, despite being set after the original Frozen, and despite having a completely different plot, the narrative-theme was almost exactly the same, and it feels like both Anna & Elsa started this book in the same place as they started the original Frozen, and had to go through the same character arc again to learn the same lessons by the end of the book. The epilogue is a teaser for the second movie and feels incredibly out of place. It's really just an advertisement - I would recommend just not reading it, and watching the movie instead. Despite being really well written, the intriguing & original plot with some fantastic set-pieces, and the great twisting of Scandinavian mythology into the world and lore, the book is let down by the flat characterisation of the supporting cast, and the rehashed themes. It also drags on a little in some chapters, but that's not too much of a problem since it's a very easy read. Literally nothing to do with a forest, though? The title is incredibly confusing, I almost feel like someone accidentally swapped the cover file before sending it off to the printers.