Not everyone needs horror films or novels to feel afraid—some real-life moments are chilling enough. While some strange experiences have logical explanations, others make you question reality itself. The following true accounts might just linger in your thoughts long after you’ve read them.

One woman woke at 3 a.m. to hear her son asking her to turn off the light. She did—only to remember he was away camping. When she checked, his room was empty. Another story involves a man who, as a child, felt a hard tap in a haunted room and woke with a paw-shaped mark on his back.

Someone else heard a woman scream for help one summer night, followed by flashing police lights—yet no one else saw or heard a thing. On a London train, a passenger noticed a man in a bright shirt. Moments later, that same man passed her on an escalator—impossible timing that chilled her to the bone.

Others encountered ghostly frogs at a deserted house, or dreamed of their children disappearing into dust, waking up with a feeling they couldn’t shake.

Some mysteries are better left unexplored—but they sure make for unforgettable stories.