mysterious hidden passage illuminated by enigmatic green light in an endless underground tunnel with foggy surroundings and

fog unseen mood surroundings passageway symmetry journey damp tunnel illuminated eerie ethereal haunted mysterious solitary scenic adventurous dreamlike unknown captivating light foggy endless long forgotten mystery underground adventure passage moody glowing corridor green dimly exploration enigmatic atmosphere perspective shadows tranquil hidden deserted fantasy labyrinth secluded surreal spooky mystical old