The April monthly deals from Amazon.co.uk include the following:
Neal Stephenson: Seveneves at £1.99
https://www.amazon.co.uk/Seveneves-N...1027962&sr=1-2
Note that this is a repeat deal.
Lev Grossman: The Magician King (Magicians bk 2) at £1.99
https://www.amazon.co.uk/Magician-Ki...027200&sr=1-85
2 Valdemar novels from Mercedes Lackey:
The Mage Wars Omnibus at £1.69
https://www.amazon.co.uk/Mage-Wars-V...27245&sr=1-125
Closer to the Heart (Herald Spy bk 2) at £1.69 (possibly another repeat)
https://www.amazon.co.uk/Closer-Hear...27270&sr=1-137
2 from Kurt Vonnegut:
The Sirens of Titan at 99p
https://www.amazon.co.uk/Sirens-Tita...27321&sr=1-173
Breakfast of Champions at 99p
https://www.amazon.co.uk/Breakfast-C...27484&sr=1-257