FREE/BARGAIN — Mystery, Suspense & Thrillers

[salty-horse]

Horror-tinged Mystery with a lot of illustrations:

Strange Pictures by Uketsu is £1 in the UK (Kobo, Amazon)

A Japanese mystery bestseller, revolving around a series of creepy drawings, in which the reader is the detective - from the YouTube sensation Uketsu A series of drawings made by a young woman before her death. A child's disturbing picture of his home. A desperate sketch made by a murder victim in his final moments. Each contains a chilling warning. Each reveals a terrible secret, hidden in plain sight. Uketsu's eerie mysteries have captivated millions of readers. Can you find the clues in these strange pictures and uncover the sinister truth that connects them all?

Strange Houses by Uketsu is £1 in the UK (Kobo, Amazon)

A twisty puzzle in which the reader is the detective, examining a series of creepy floorplans for clues

A sinister hidden room. A dead space between two walls. A sealed cellar. A child's face glimpsed at a window. Every house hides secrets. But some secrets are far darker than others. More than a million readers have discovered the terrible truth behind these strange houses. Now it's your turn.

[DrNefario]

I've heard good things about Strange Pictures, but only from people who've read the paper version. I don't know how well it works as an ebook, but it might be worth a shot at that price.