the topographical indications in this passage , important to the narra- tive , are readily enough accommodated to the later accounts , with one major exception : it is clear that in the old story the stream of the waterfall that fell down to the silver bowl was the same as that which ran through the gorge where turambar slew glorund : here flowed that same stream that further down wound past the dragon 's lair [ lair = the place where he was lying ) in a deep bed cloven deep into the earth ( p. 105 ) .