Right now, for some reason, a lot of publishers offers free or discounted mystery, suspense, and crime. So I thought I would round them up.
Oceanview offers a bunch of novels for free at Amazon. (I think it is at least twelve. )
Kobo offers 30% of on selected Faber and Faber novels with this code Save30Aug3j9
Kobo also offers The long midnight of Barney Thomson for free. It sounds interesting.
Kobo also offers several short stories and novella for 0.99-2.99. Some romance, some horror, some suspense.