The man was obviously top heavy.

But you abandoned this first theory." "Certainly, Mr.Kent, we always do.

Our second theory was----" But Kent had ceased to listen.

He had suddenly stooped down and picked up something off the floor.
"Ha ha!" he exclaimed.

"What do you make of this ?" He held up a square fragment of black cloth.
"We never saw it," said Edwards.
"Cloth," muttered Kent, "the missing piece of Kivas Kelly's dinner jacket." He whipped out a magnifying glass.