Which they define as between 20-40,000 words. Novellas are lovely to write and near-impossible to publish, so I thought I'd bring this to WWers' notice.
I see they are also running a Sci-Fi and Fantasy competition:
Science Fiction and Fantasy Short Story Competition
Closing date: 30th April 2007
We invite short stories in the genres of science fiction and/or fantasy. Word limit 6,000.
Entry Fee:
£5.00 per submission
Overall winner receives £200.
Runner-up receives 10 Leaf Books.
Other selected entrants will be granted publication in the anthology.