Call It Fate, Call It Karma

After a world-walking incident, Loki finds himself in possession - or rather being possessed, by a strange otherworldly entity that seems to take an affinity to him. Little does he know just what he's harboring and what it means for his future.
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“Loki, thank the Norns,” he cried, rushing forward to embrace him in a bone-crushing hug, “Where in the Nine have you been? ”
“What are you on about, Thor?” he was so confused he forgot to struggle, “You’re acting as if I’ve been gone for decades.”
Thor pulled back and set upon Loki a look. His heart dropped.
“No,” he whispered, “Please, no, don’t tell me that-”
“No! Nothing quite that long!” Thor rushed to assure, but his expression dropped once more, “But, Gods, Loki, you can’t just disappear like that without telling anyone. Mother and Father were so worried, they thought you had…had fallen between the ways between worlds.”
“I was not gone for that long, was I?” Now he was growing concerned, Thor’s behavior was scaring him.
Thor fixed him with that same look.
“Brother?”
“Loki, you were gone for five years. ”