"One needs some one with whom to exchange one's memories." Had Garratt Skinner felt that need and felt it with so much compulsion that he must satisfy it in spite of himself?
Yet why should he practise concealment at all?
There certainly had been concealment.

Chayne remembered how more than once Garratt Skinner had checked himself before at last he had yielded.

It was in spite of himself that he had spoken.
And then suddenly as the train drew up at Vauxhall Station for the tickets to be collected, Chayne started up in his seat.

On the rocks of the Argentiere, beside the great gully, as they descended to the glacier, Sylvia's guide had spoken words which came flying back into Chayne's thoughts.

She had climbed that day, though it was her first mountain, as if knowledge of the craft had been born in her.