"No, you haven't," said Mullett quickly.
"Your face seems very familiar."
"Never seen me in your life."
"Come this way, Garroway," said Hamilton Beamish, interrupting curtly. "We cannot waste time in idle chatter." He led the officer to the edge of the roof and swept his hand round in a broad gesture. "Now, tell me. What do you see?"
The policeman's eye sought the depths.
"That's the Purple Chicken down there," he said. "One of these days that joint will get pinched."
"Garroway!"
"Sir?"
"For some little time I have been endeavouring to instruct you in the principles of pure English. My efforts seem to have been wasted."
The policeman blushed.