But one other discovery he had made also which gave him an inspiration and made him feel foolish that he had not had the inspiration before. The little round thing that he had felt in about the center of the tire was the red tail light of the car; he realized that now. And this discovery reminded him that he could have all the light he wanted by the mere touching of a switch. "That shows how stupid I am," said Pee-wee. He was so relieved and elated that he could afford to be generous with self accusations. "One thing sure, it shows how when you hunt for a thing you find something else, so if you're mistaken it's a good thing." This was logical, surely, and he now proceeded to avail himself of the benefit of his chance discovery. Presently this dank, mysterious, spooky dungeon would be bathed in welcome light. Pee-wee climbed into the front seat and moved his hand across the array of nickel dials and buttons on the instrument board. There seemed to be a veritable multitude of little handles and indicators for the control of the Hunkajunk super six touring model. Not even a wireless apparatus, with which Pee-wee's scouting experience had made him familiar, had such a variety of shiny little odds and ends. Having no knowledge of these things he moved his hand among them cautiously, fearful lest some inadvertent touch might cause the car to go careering into the board wall. He bent his head close to the instrument board in search of printed words indicating the purpose of the various buttons, but the darkness was too dense for him to see anything but the shiny nickel. At the same time his wandering foot, conducting an exploration of its own, came against a little knob. Pee-wee never knew precisely what he did to cause the startling occurrence which followed. There were two switch buttons, side by side, and in one a small key had been left. Evidently he decided that this was the lighting switch. He was just able to decipher the word IGNITION above it. But alas, the word ignition means SPARK on an auto. Whether he purposely, in curiosity, stepped on the button in the floor he never knew. In nine cases out of ten it would have required more effort to start the Hunkajunk touring model. But this was the tenth case. In a frantic effort to stop the power, or perhaps in groping with his hand, he pulled down the spark lever, and the six cylinder brute of an engine awoke to life! Out of the exhaust pipe in back poured the fatal volume of gaseous smoke which spells death, horrible and suffocating, when locked and barred doors and windowless walls enclose the wretched, gasping victim as in a tomb. CHAPTER X A RACE WITH DEATH In close confinement it is all over in a minute in these cases. The victim is poisoned and suffocated like a rat in a hole. Surprising as it may seem, this deadly poison works faster than its victim can act. And with darkness for its ally the only hope lies in presence of mind and quick action.