Oh, right, I think I did... [That probably sounds very reassuring, and even more so when Ren starts rather absently patting down his pockets as they walk, as if he doesn't remember where he put the key.

Finally, however, he finds it in an inner pocket of his coat and pulls it out victoriously, waving it in the air a little.] Found it. So I guess now I just have to figure out how the rooms are organised and it'll be fine~

[Probably. He might find a way to get lost anyway.]