Frank (Neptune's advisor)

The Mud Monster was seen in the Clash of Triton. He is a big monster made of mud and is probably the brother of Nepyune and Amphertrite. The Mud Monster has no eyes and has a single tooth. He was seen eating Frankfurters (hot dogs) in Spongegod. He is presumbaly the uncle of Mindy, Triton, and Neptuna. He was locked in a cage with Neptune, Amphertrite, the Green Sea Monster, the Purple Hag, Mr.Krabs, and Squidward by Triton. He was rescued by SpongeBob and Patrick after Patrick unlocked the cage. He returns home with Neptune and his family.