"I beat you after——" he tried to boast.
But the poison, quicker than he had thought, cut short his utterance. His eyelids flickered twice. He collapsed against Greenleaf and slid, crumpled, to the floor.
"Cyanide," said Braceway. "He had it in the shank of that collar button."
Greenleaf bent over him.
"God, it's quick!" he announced. "He's dead."