“Then, having dismissed accident and suicide as possible causes of death, there remains one explanation only—murder.”
“Yes, Chief Inspector. I am afraid that you are right, though it is incredible to me that any man should have wished to murder him. I would more easily believe that he was killed by mistake, the murderer mistaking his victim.”
“I can’t state that that is an impossibility, sir, but I do consider it mighty improbable. The only person ever known to have slept in the cave was the professor, and the method used presupposed the presence of the victim in the cave for some time, also the fact that the victim should sleep there. To the best of my belief, had the professor not slept, he would have discovered what was being planned. However, I should not be justified in taking up yo
