The Messenger Witch from Invasion now has a name! She's called Agni. Thanks to Saru for naming her.
I've also tried to make her facial features more distinct. She was literally intended as a throwaway character, but she got more of a role in the story as I worked on the final 20 pages of script for it. So now she's a little chubby under the chin, looks like she's a specific age (over 30, at the least) and is careworn from the year she will have spent in Alcydia's dungeon when we see her again.