hind him a light, soft sound of footfalls, deliberate, regular, successively nearer!
IV
Just before daybreak the next morning Dr. Helberson and his young friend Harper were driving slowly through the streets of North Beach in the doctor's coupé.
"Have you still the confidence of youth in the courage or stolidity of your friend?" said the elder man. "Do you believe that I have lost this wager?"
"I know you have," replied the other, with enfeebling emphasis.
"Well, upon my soul, I hope so."
It was spoken earnestly, almost solemnly. There was a silence for a few moments.
"Harper," the doctor resumed, looking very serious in the shifting half-lights that entered the carriage as they passed the street lamps, "I don't feel altogether comfortable about this business. If your friend had not irritated me by the contemptuous manner in which he treated my doubt of his endurance—a purely physical quality—and by the cool incivility of his suggestion that the corpse be that of a physician, I should not have gone
