Hold on there, chief. Maybe I can give you hand with that.

[He takes the line and carries it over to the smooth rock surface and pulls a bolt gun from his coat. He fires a thick hunk of metal into the stone, tilted so that the rope likely won't slip with their weight, and starts to tie it.]

I got a flashlight but I don't got a lot of the museum torches to go around. We're gonna have to be conservative.

[His tone says he's not too pleased with the notion, but now he's ready to go down.]