As a member of the Dragon Phalanx, Xerex is hunted by the Invincible Overlord just for being a symbol of a more lawful time. The Dragon Phalanx served as the King's personal bodyguard, but had many other responsibilities such as being shock troops in battle and traveling the land as representation of the King's law.
Each member of the order has a title bestowed on them, and Xerex's title is "The Lawgiver" for his acts in bringing law to the remote towns of Alexandria. The citizens of these small remote towns love Xerex and would be willing to stand in his defense against the agents of the Invincible Overlord.
Xerex heard of the troubles that Conyberry was facing and decided to travel there to see what he could do to help the town.