The Emerald Cavern is guarded by a very fierce spider of death who can kill its opponents with its venom. Its venom destroys the walls of the player's skin near the site of the bite, sometimes causing a large wound. Within the cavern, the treasure is guarded and it is often needed for a healer to come with the main user on the journey to obtain the emerald treasure. No one has seen what is behind the emerald chest, but the locals say that the treasure must be very valuable.