A nice collection of Richard Laymon books for a silly price. It's been some time since I read a Laymon, but what I do remember is that he can be particularly horrific.
The link sends you to The Beast House Compendium, which retails at £2.99, but you get all 4 books in The Beast House series.
When eight people are shipwrecked on a deserted island they take solace in the fact that at least they have fresh water, food and firewood. Now all they have to do is sit tight until they're rescued. There's just one problem - they're not alone. In the jungle behind the beach, there's a maniac on the loose and he's plotting to kill them all, one by one...
Whitechapel, November 1888: Jack the Ripper is committing his last known murder and beneath the bed on which he's butchering his victim cowers a fifteen-year-old boy. So begin the adventures of Trevor Bentley: a boy who embarked on an errand of mercy and ended up on a quest for vengeance, a boy who will bring the horrors of the Ripper to the New World.
Among the Missing: https://www.amazon.co.uk/Among-Missing-Richard-Laymon-Classic-ebook/dp/B006MJEHOI/
2:32am: A Jaguar roars along a lonely road in the Californian mountains. Behind the wheel sits the beautiful wife of Professor Grant Parkington. She has left Grant behind and is on her way to meet a different kind of man - someone as wild and passionate as herself. In the morning a naked body will be found. A body missing more than its clothes...
Midnight's Lair: https://www.amazon.co.uk/Midnights-Lair-Richard-Laymon-Classic-ebook/dp/B007VFZH32/
Mordocks's cave is one of the wonders of the world: a place where, every year, thousands of sightseers go deep beneath the earth's surface to marvel at Nature's handiwork. But it's also home to things Nature never intended - violent, evil things. And when a power failure traps a group of tourists underground, the creatures emerge from the darkness...
Darkness, Tell Us: https://www.amazon.co.uk/Darkness-Tell-Us-Richard-Classic-ebook/dp/B007VFZF34/
Dark Mountain: https://www.amazon.co.uk/Dark-Mountain-Richard-Laymon-ebook/dp/B008K5TZYE/
Body Rides: https://www.amazon.co.uk/Body-Rides-Richard-Laymon-ebook/dp/B008258L8I/
Night Show: https://www.amazon.co.uk/Night-Show-Richard-Laymon-ebook/dp/B007ZT9R2G/
There's also a whole lot of Laymon's works at £1.99.
The Dean Koontz offer still seems alive, too: http://www.hotukdeals.com/deals/dean-koontz-books-99p-kindle-amazon-2502719