The first book in Nalini Singh's Guild Hunter series Angels' Blood is discounted in the UK £1.99 and Germany euro 2.49. This is a publisher special from Gollancz and seems to be available at amazon, kobo and google. Be careful the Berkley edition is not discounted.
Description
Vampire hunter Elena Deveraux knows she's the best - but she doesn't know if she's good enough for this job. Hired by the dangerously beautiful Archangel Raphael, a being so lethal that no mortal wants his attention, only one thing is clear - failure is not an option . . . even if the task she's been set is impossible.
Because this time, it's not a wayward vamp she has to track. It's an archangel gone bad.
The job will put Elena in the midst of a killing spree like no other . . . and pull her to the razor's edge of passion. Even if the hunt doesn't destroy her, succumbing to Raphael's seductive touch just may. Because when archangels play, mortals break . . .
Links
https://store.kobobooks.com/en-US/ebook/angels-blood
http://www.amazon.co.uk/dp/B003774XME
http://www.amazon.de/dp/B003774XME