A number of SF/Fantasy bargains on today's Amazon UK Kindle Daily Deal:
King of Swords, by Dave Duncan.
The God Patent by Ransom Stephens (is "Ransom" really a name?
)
The Mammoth Book of Time Travel SF edited by Mike Ashley.
The Time Traveller's Almanac: The Ultimate Treasury of Time Travel Fiction edited by Ann and Jeff Vandemeer.
Among Thieves by Douglas Hulick.
Some real bargains there. I'd particularly recommend the "Mammoth Book" volume; I have lots of books in this series and they are all excellent. Dave Duncan is also a very good fantasy author, best known for his "Seventh Sword" trilogy.