Of interest in the September Kindle Monthly Deals on Amazon.co.uk:
Ted Chiang: Stories of Your Life and Others, £1.19 (a repeat I think)
https://www.amazon.co.uk/Stories-You...243863&sr=1-33
Naomi Novik: Uprooted, £1.19
https://www.amazon.co.uk/Uprooted-Na...243863&sr=1-48
John Scalzi: Old Man's War, £1.19 (another repeat I think)
https://www.amazon.co.uk/Old-Mans-Wa...243900&sr=1-49
Garth Nix: Goldenhand, £1.49
https://www.amazon.co.uk/Goldenhand-...243900&sr=1-55
Garth Nix: Lirael (The Old Kingdom#2), 99p (possibly another repeat)
https://www.amazon.co.uk/Lirael-inte...44008&sr=1-109
Garth Nix: Abhorsen (The Old Kingdom #3), 99p (possibly another repeat)
https://www.amazon.co.uk/Abhorsen-in...44036&sr=1-120
Garth Nix: Clariel (The Old Kingdom #4), 99p (poosibly another repeat)
https://www.amazon.co.uk/Clariel-Pre...44008&sr=1-108
(The Old Kingdom #1 - Sabriel isn't in the deal, but it's priced at £2.48 -
https://www.amazon.co.uk/Sabriel-int...4245086&sr=1-8)
Genevive Cogman: The Invisible Library, £1.19 (this is a repeat)
https://www.amazon.co.uk/Invisible-L...243900&sr=1-62
Tim Lebbon: Relics, 99p
https://www.amazon.co.uk/Relics-Tim-...44194&sr=1-194
Mercedes Lackey: The Last Herald Mage (A Valdemar Omnibus), 99p (probably a repeat)
https://www.amazon.co.uk/Last-Herald...44194&sr=1-203
George R R Martin & Gardner Dozois: Old Venus, £1.19 (possibly a repeat)
https://www.amazon.co.uk/Old-Venus-G...44667&sr=1-313