A review by booksnorkel
Castle by Garth Nix

4.0

After finding himself out on the ice and in desperate need to return home, he is charged with finding a sunstone for one of the Icecarls ships. To make sure he follows through Milla a ferocious Icecarl girl who has heard horror stories of moving shadows. Can they overcome their differences and make it back to the castle or will the hidden dangers of the ice get them before they do?

Again this book should be part of a collection rather than a stand alone. Tal and Milla are from two different worlds, and they have a lot more to learn if they are to finish their quests.