NPC Spawn Issue: Felia Goldenwing, Enchanter epic

[Negativefx83]

so killing "a mature wurm" or "a mature chroma" or "mature wyvern" can/will eventually spawn a named? And that named can be any of the named in the zone including Felia? And does she / the named spawn at a static spot or random throughout the zone? And does she look like a normal chroma?

Sorry for all the questions, been trying to do this solo.