“Why was Dr. Renault so stubborn about that cyanide?” Mason asked.
“Dr. Renault said he knew what must have happened just as soon as he learned about the cyanide at the autopsy. He was preparing his own defense even then. If he had ever admitted that there had been even a single symptom of cyanide poisoning while he was treating Ed Davenport, he would have crucified himself in case the true story ever came out.
“If it hadn’t been for the children finding that grave, we would never have known what happened. A convincing case of poisoning would have been made out against Myrna Davenport. She probably would have been convicted.”
Mason chuckled. “You can imagine how Dr. Renault felt when the body was found and the autopsy showed poisoning by cyanide.”
“Well,” Vandling said, “thanks to your co-operation I’ve had a nice feather in my cap. People here are patting me on the back and they’re going to keep patting me on the back. The thing that I can’t understand is how the devil you figured it out.”
“I didn’t figure it all out,” Mason said, “but I knew that Edward Davenport was the only person who could have been sure he would be taken sick at Crampton. If Davenport had planned it that way, then it was almost certain that Dr. Renault was in on it. And because the grave had been dug it was almost certain that someone else knew it had been planned in advance that Davenport was to be taken ill at Crampton.
“When you come right down to it, Vandling, you have to bear in mind that while Beckemeyer and Renault may have committed the actual murder the one who really put his neck in the noose was Ed Davenport.”
“Contributory negligence,” Vandling said, grinning.
“Exactly,” Mason observed, filling the glasses once more. “Well,” he said, “here’s to crime.”
The End
About the Author
Erle Stanley Gardner is the king of American mystery fiction. A criminal lawyer, he filled his mystery masterpieces with intricate, fascinating, ever-twisting plots. Challenging, clever, and full of surprises, these are whodunits in the best tradition. During his lifetime, Erie Stanley Gardner wrote 146 books, 85 of which feature Perry Mason.