Anomaly

Have you ever been alone in the woods at night, when the crack of a branch sounds like a gunshot, and a stranger can be seen behind every tree? At such moments, the primal instinct for self-preservation is awakened. Imagine if you know for sure that somewhere in the vicinity there is an anomalous zone. Where it came from and what is its danger is unknown. But maybe such mysterious phenomena explain unpredictable behaviour - sudden anger and self-sacrifice, heroism and cowardice?