Ian Hay, The Lucky Number — The Cure (1923)
“ McRobbie—looking, as Angus afterwards described it, “like the cat helping mother to hunt for the missing canary”—handed half-a-dozen cartridges to his employer, who put them in his pocket.“Now I’m ready,” said Smithson. “Come along, McRobbie!”“Ferry good, sir. Come, Frolic!”“You may be bothered a bit by the echo at first, Mr. Smithson,” said Angus.“Echo? What echo?”“It’s a curious local phenomenon. Every time you loose off your gun you will hear a sound as if some one had fired just behind you. It quite worries some people.” ”
