sufficiently long to reach the supposed crack: the end of the rope hung loosely down into space from the ring above. I cautiously began to descend, hand under hand, down the smooth, gleaming side of the Sirius. The distance seemed longer than I had calculated, and I could not see very well out of the glasses, for my breath dimmed them. I went cautiously lower and lower, when to my utter horror the bight of the rope gave way, and I slipped down many yards, to find myself hanging by the hands alone in space, below the Sirius.