“You know that fierce brute that belongs to my landlady,” said Teddy Weeks. “The one that always dashes out into the area and barks at people who come to the front door.” I remembered. A large mongrel with wild eyes and flashing fangs, badly in need of a haircut. I had encountered it once in the street, when visiting Ukridge, and only the presence of the latter, who knew it well and to whom all dogs were as brothers, had saved me from the doom of Victor Beamish. “Somehow or other he got into my bedroom this evening. He was waiting there when I came home. I had brought Beamish back with me, and the animal pinned him by the leg the moment I opened the door.”

“Why didn’t he pin you?” asked Ukridge, aggrieved.

“What I can’t make out,” said Teddy Weeks, “is how on earth the brute came to be in my room. Somebody must have put him there. The whole thing is very mysterious.”

“Why didn’t he pin you?” demanded Ukridge again.

“Oh, I managed to climb on to the top of the wardrobe while he was biting Beamish,” said Teddy Weeks. “And then the landlady came and took him away. But I can’t stop here talking. I must go and get that doctor.”

We gazed after him in silence as he tripped down the street. We noted the careful manner in which he paused at the corner to eye the traffic before crossing the road, the wary way in which he drew back to allow a truck to rattle past.

“You heard that?” said Ukridge, tensely. “He climbed on to the top of the wardrobe!”

“Yes.”

“And you saw the way he dodged that excellent truck?”

“Yes.”