Metronome, mother of Ion Sparkplug met with his close friend Wing Front, and brought him to a lonely spot to chat.. but the conversation was nothing but somber, as she explained that one day she was gone in body, but still wondered on in spirit.
She came to thank Wing Front for taking care of his son and told him to never speak to anypony else lest Ion would be driven insane. It would be an event that only these two would ever know.
Wing Front hugged his daughter and wife tighter every day ever since.