User blog comment:SayuriDarling/The Hammer of Thor Official Discussion/@comment-4528975-20160116234800/@comment-7728766-20160213191656

I know this is very late response but I'll answer it anyway.

I doubt Loki stole Thor's hammer. Judging from reading the epilogue, I concur that Randolph is the one who stole it. But how he did it remains a mystery.