Mammatus

Chief Mammatus is the leader of the Keepers and one in a long line of the protectors of the Storm Amulet. He is the main antagonist of The Island and an ally in Seabound.

At an unknown point in time, he became the Chief of the Keepers, and sole protector of the Storm Amulet. One day, the Keepers became deceived by Ronin, and appeared to think that the storm spirit Wojira was ordering them to give her gifts. Mammatus obliged, but it would take the Ninja arriving on his island to discover the farce. Later, he would entrust Nya as the new protector of the Storm Amulet after it became sought after by King Kalmaar.