How about something easy to get into and tough to put down? Try MISS PEREGRINE'S HOME FOR PECULIAR CHILDREN by Ransom Riggs. It's a very fun read and interspersed with strange photographs.
Can't get enough of salacious mysteries? Try THE CRADLE IN THE GRAVE by Sophie Hannah. Frighteningly realistic police procedural.
A strange disappearance and a race to find the truth are the object of the entirely-true, bone-chilling tale of THE LOST CYCLIST by David Herlihy.
Or try something in the realm of the impossible made entirely plausible in a collection of short stories by Ben Loory. STORIES FOR THE NIGHTTIME AND SOME FOR THE DAY is unlike anything else.
Science, too, can be terrifying, when we take a look at how far we've come. Check out MEDICAL MUSES: HYSTERIA IN 19TH CENTURY PARIS by Asti Hustvedt and learn about some of the first studied ideas about sanity.