15Prudently placing first things first, Mr. Campion did not look at either of the visitors but concentrated on the housekeeper. She showed no surprise at his sudden appearance, but when he asked her for coffee she smiled and shook her head at him.
Yeo pushed a slate across the table at him. “You have to write it,” he said briefly.
Mr. Pirri looked up sharply. It had been evident from the Superintendent’s tone that he and Campion were acquainted. He got up at once, and with determined leisureliness strolled towards the door. On the threshold he looked back.
“Good night, all,” he said.
“Good night,” said Yeo, without turning to him, and sighed with relief when the area door closed behind him. “Thank the Lord for that,” he said. “London is full of those chaps wandering into houses like re
