The Old King

The Old King ordered the creation of Limbo as a means to store food. When the Great Green One finished his work, the king attacked him and his college to avoid paying the ransom.

The Old King locked himself away in Limbo to hide when his people rioted, and over time became a spirit.

The spirit of the old king was used by Percival to kill the original Guan Kao, and by new Percival to weaken Guan Kao and allow Ticus, Anebriate, Chairs, and Veren to kill him.

The Old King was locked in a ring by new Percival and given to Ticus. Later on this ring was tampered with by the Great Green One in Talwarie Woods.