His desire was gratified, for at that moment a doctor, two reporters and an ambulance man came hurrying down the incline leading to the pier. The doctor turned his attention to the still unconscious man, while the Pressmen tackled the sergeant in a most business-like manner. Atherton seized the opportunity and slipped off. The water was still dripping steadily from his things. He started into a run, partly to restore his numbed circulation and partly to get back to the spot where he had taken his venturesome dive, for he remembered that he had left his boots and coat on the bridge. By the time he reached the top of the three flights of stairs leading from the Embankment to the bridge his watery tracks were quite insignificant, and of the few people hurrying on their way home none noticed the hatless, coatless and bootless youth. The crowd of curious spectators had dispersed. A rumour that the water police had picked up the body of the victim had resulted in a wild stampede along the Embankment. Atherton made his way to the place where he had dropped into the river. His coat and boots had vanished. "I'm in a pretty fine mess!" he exclaimed, ruefully. "Dirty trick, sneaking a fellow's clothes, though. I wonder what the Head will say when I turn up late." Atherton knew that if he journeyed to King's Cross otherwise than on foot he would be exposing himself to a great risk by taking cold, so adopting the "Scout's pace"--alternately walking and running twenty paces--he found himself at the Great Northern metropolitan station in very quick time. Upon arriving at Collingwood College a slice of good luck awaited him. Jellyboy, the porter, was standing on the kerb beckoning frantically to a newsboy. The outer door was open, and the Scout slipped in unobserved. Under ordinary circumstances he would have gone straight to his house master, but the desire to keep his good turn a secret caused him to make straight for the dormitory. Here he changed, placing his still damp clothes under his bed till he could find an opportunity of drying them. "Prep." was over. Harrison, the junior science master had been in charge, and had not noticed Atherton's absence. The Scouts were assembling for the evening's instruction, and, not without curious glances from his chums, the Leader of the "Otters" joined them. Somehow Atherton did not feel quite satisfied with himself. He began to realise that by avoiding publicity he had placed himself in a false position. By promptly giving the police a detailed description of the two assailants, the arrest of the culprits might have been speedily effected. Besides, he did not relish the stealthy tactics he had to adopt in returning to the College without being detected. "I'll see Mr Trematon and tell him all about it," he declared. "It seems to me that I've made a pretty mess of things, so here goes."