Hiding place of one of the Four Golden Weapons of Spinjitzu, the Scythe of Quakes. This was the first location to which the ninja traveled in search of the Golden Weapons. The caves are part of one of the largest mountains on NINJAGO Island and stretch for kilometers. Samukai ordered a Skeleton Army mining operation here in an effort to find the weapon, which resulted in the laying of railroad tracks, the carving of new tunnels and the construction of Skeleton Army watchtowers. The ninja succeeded in finding the Scythe first, but it was guarded by an Earth Dragon. The creature eventually became Cole’s mount.