Okay, looking back at that art of Eclipse, it sucks

But here's something new for y'all.
In the story I'm writing, I make it clear that Loki has indeed visited Equestria beforehand. I am now creating that backstory. But I need your help. Can someone explain to me what exactly happened in Granny Apple's past? I haven't seen the episode and it'll be a while before I can, so.
Anywho, the last time Loki went to Equestria was in young Granny's time. I don't have specifics yet. The most I've come up with is that Loki ended up attacked by a wolf of some kind (a Timberwolf, maybe?) and got hurt. Badly. He didn't know how to get out of the world yet, so basically he just kept walking until he collapsed. Granny found him, and took care of him, even when the wound got infected.
She would be the only one to recognize Loki when he came back the second time, before he and Luna got together, and Thor would be like "You've been here without me? And didn't tell me?

"

So this is kind of how I imagine that reunion. (I'll share a secret. this is really only so I can satisfy my need for hurt/comfort.

)
Loki looks so relieved and so... soft XD It is very rare to catch him with a smile on his face and ears perked up to attention.