But what has that to do with--" "Ye'll understand in a moment," said Mr.Caryll, with a smile the spy did not relish.

"D'ye recall a ruse of Sir Harry Wildairs to rid himself of the company of an intrusive old fool who was not wanted?
D'ye remember what 'twas he did ?" Mr.Green, his head slightly on one side, was watching Mr.Caryll very closely, and not without anxiety.

"I don't," said he, and dropped a hand to the pocket where a pistol lay, that he might be prepared for emergencies.

"What did he do ?" "I'll show you," said Mr.Caryll.

"He did this." And with a swift upward movement, he emptied his snuff-box full into the face of Mr.Green.
Mr.Green leapt back, with a scream of pain, hands to his eyes, and quite unconsciously set himself to play to the life the part of the intrusive old fellow in the comedy.