“The police, too?”
“Certainly. The police more than anybody!”
“By Jove!” commented the boy.
“You ask me what I suspect,” Robin continued. “I admit I have no positive proof. But I suspect that Hartley Parrish did not die by his own hand!”
Bruce Wright looked up with a startled expression on his face.
“You mean that he was murdered?”
“I do!”
“But how? Why?”
Then Robin told him of the experiment in the library, of the open window and of the bullet mark he had discovered in the rosery.
“What I want to know,” he said, “and what I am determined to find out beyond any possible doubt, is whether the bullet found in Hartley Parrish’s body was fired from his pistol. But before we reach that point we have to explain how it happened that only one shot was heard and how a bullet which apparently came from Parrish’s pistol was found in his body ...”