This is Jadreolath, an episodic character in my Ender Sparkle story series. He's a wise, ancient lung, living deep inside of an ocean monument near Oremin Islands and treats guardians as his children. At the Ender Sparkle arrived, he is at the end of his life and knows many things; why Ender Sparkle arrived, why both some guardians and people turn undead, what will happen next and what E.S. needs to continue her journey. And yes, that white thing on the back of his head is his mane.