2005 Booktrust teenage prize.

From the Guardian:

A Gothic novel for teenagers by a newcomer to the children's fiction scene has seen off Meg Rosoff's acclaimed How I Live Now and Julie Burchill's gripping tale of schoolgirl lesbian love, Sugar Rush, to win the 2005 Booktrust teenage prize.

Unlike the other books on the shortlist, Century by Sarah Singleton, is set in the 18th and 19th century and the action is entirely contained within a house and garden. Two young girls, Mercy and her sister Charity, live in perpetual winter until, one day, Mercy wakes to find the first sign of spring - a snowdrop - on her pillow, A chance meeting then prompts her to question everything she has ever known and to wake from the long dream of the past.

...

Geraldine Brennan, the chair of the judges, singled out Singleton's work as "a perfectly formed, highly visual and intriguing novel in the gothic tradition, with the timeless feel of Frankenstein or Dracula."

Dude, if it beat out How I Live Now, it had better be good.  Not that I have any way of finding out, since it isn't out in the States.  Damnit.  (On the other hand, Sugar Rush is here.  I wonder if that's have they've been advertising it here:  A "gripping tale of schoolgirl lesbian love".  Probably not, since it's only #300,250 at Amazon.)