Craft a chilling image depicting a mysterious, haunted well with an ominous atmosphere. Capture the eerie essence of the well, shrouded in darkness and mystery. Use lighting to highlight ominous shadows and eerie reflections within the well. Surround the well with elements that intensify the sense of foreboding, such as gnarled trees, mist, or abandoned structures. Infuse the scene with an unsettling ambiance that evokes fear and curiosity.