Echemus is the Crystal Moon Child Dragon son of Eros, and the ascended son who took his father's post in the reunited ruby court of Sardior.
About
For decades, if not centuries, Echemus operated under a polymorphed appearance of a Lunaran priest, only truly revealing himself publically for the first time after Drakkoth attacked his holy village of Hallasen. It is unknown what other forms he took over the years, as even many Lunarans were surprised to hear he had disguised himself as one of them.
History
On his last flight back to Quelmar from the moon, he became delirious on the long trip, making him vulnerable and susceptible to ambush.
He was spotted by a cabbage salesman in a small village south of Seglock, who learned from Echemus (and passed on to the Dragon hunters known as The Protectors of the People) that Echemus was searching for a Sapphire Dragon, namely Bleucorundum. Calling her "a blue coward" he stumbled deliriously thorugh the isonhound wilds, going back and forth from Dragon shape to Moon Priest shape.
In his stumbling and vulnerable state, he was collected by cultists, which made him more corrupted and crazy after being experimented on by cultists of The One That Waits (Specifically the faction calling themselves the Cult of Att-Annalo).
While mentally infected with moon madness, fought against Lindwurms and players, eventually soothed and returned to the Lunarans, who sang him to sleep with lullabys and stories.
After being drained and worked on, he's learned a bit more of the One That Waits and his goals, as well as the nebulous nature of his power.
Echemus has his own Crystal Kobold Dragonshield Thralls..