Mysterious cryptid, taxidermied creature, dimly lit abandoned laboratory, old wooden shelves, dusty jars with strange specimens, eerie fog surrounding, a massive, ancient tree looming outside, twisted roots bursting through the walls, faint moonlight casting an otherworldly glow, intricate details on the creature's fur, glassy eyes staring into the distance, worn leather-bound books scattered around, cryptic symbols etched into the walls, soft, ominous lighting.