Tethys finally asked for a meeting to explain what occurred. She said that it was indeed a rogue kelpie, and that they’ve killed him. This kelpie was one that had been out of contact with his fellows for some time and so there was no way for her to control his actions. She also presented what has to be the most preposterous excuse I’ve ever heard that blames my subjects of all things!
She said that this kelpie-who I deign not to name-had frequently expressed a wish to see his deep pony birth parents again. She theorizes that the kelpie went to the village to meet his parents, but they were disgusted by his monstrosity and imprisoned him. She suggests that they were trying to heal him themselves, and ignored his protests to let him leave, until he went rogue and broke through his prison.
I suppose I’ve learnt one thing Tethys apparently does have an imagination!