Laughing and chattering like the idiot I was fast becoming I fell upon his prostrate form my fingers feeling for his dead throat. Presently they came in contact with a small chain at the end of which dangled a number of keys. The touch of my fingers on these keys brought back my reason with the suddenness of thought. No longer was I a jibbering idiot, but a sane, reasoning man with the means of escape within my very hands.