World's end

A retelling of all these fairytales where the third son goes to rescue his big brothers, and they turn out to be total a-holes.
This is the second book in the Tiamat series that was started with the Snow Queen. In this book, we follow a secondary character from the first book. He is the third son. He finds a way to contact Moon, and then a way back to Tiamat. I assume the next book, The Summer Queen, is about him and Moon...
I don't like the story of this book, but it's very well written. I think Joan D. Vinge managed to express the narrator's mental state perfectly by the style of writing. When he was “sane”, the writing was analytical, cold, precise, when he was “insane”, it was rambling, chaotic, scary, all over the place. I mean, within Joan's normal writing style, which is very nice, I think. Just enough descriptions and emotions to keep it interesting.
I am going to keep reading this series for this challenge, they are quick enough and interesting enough, even though this isn't my favorite scifi series or fairy tale retelling ever :-D