David Gillon

I'm not really a horror fan, but there's a fair chance someone here is, in which case Bundle of Holding* having Ellen Datlow's Year's Best Horror from 2008 to date as its current offer may be interesting. Details here.

TLDR: Offer open until the 27th, either 2008, 2009 and the 10 year retrospective Best of Best Horror of the Year for £5.95, or those three plus 2010-2020 for £22.71

* Bundle of Holding works just like Humble Bundle, but mostly for RPGs. They do fiction once or twice a year. Fulfilment is normally via Drivethrurpg to download the ebooks. I use both of them regularly, they're definitely legit even if you haven't heard of them.