Amos Fearless and Dave were surrounded by the demons of the deep! The horrible ocean monsters pressed close upon them, their big eyes fairly starting from their heads, their long arms working convulsively, and their sweeping tails working the brine up into a milk-white foam. Evidently the battle-cry had gone forth, for more monsters were coming up each instant. Father and son looked at each other mutely. Both felt that the end must be near. The din increased, and being under water was so painful to the two divers that they almost fainted from the concussions. In the midst of the uproar, however, there came a sudden and dead silence. Other monsters were approaching, leading to the scene a monster larger than the rest. It was the king of the submarine demons. At the approach of the king all the others fell back. The king advanced, with eyes as staring as his followers, but with a tail that was motionless. Ten feet from Amos Fearless and Dave he halted. For a moment nothing was done upon either side. Evidently the king of the demons was calculating the best manner of attacking the strange objects which had appeared in his realm. He had seen the dead bodies of human beings, but never had he beheld live human beings, with skins of steel and rubber. At last he came up cautiously and put out one long and bony hand towards Dave. The movement was so slow that Dave was filled more with curiosity than with fear. The king of the demons felt of Dave's legs, his body and his arms. Then he took hold of the submarine gun and suddenly wrenched it from the young diver's grasp. With the gun he went back to his followers. In the meantime the demon that had been shot was slowly dying, surrounded by a number of his friends. As soon as he was dead the others rent him limb from limb and began to eat him up! They were cannibals! The king of the demons handled the gun he had taken rather gingerly, nevertheless his hand, or paw, struck the trigger, and the submarine weapon was discharged full into the face of another demon sitting near. A wild sound immediately arose, and as the shot demon fell back dead, several other demons closed in upon the king. Soon the monsters were fighting wildly among themselves. The water was dyed half a dozen shades, shutting in the fighters as in a cloud. Amos Fearless touched Dave on the arm and motioned his son to follow him. The young diver understood, and in haste the pair withdrew from the circle of combat. Then they literally ran for the diving bell. It was a fearful strain upon each, for their diving suits weighed seventy-five pounds apiece. They were still a score of feet from the bell when some of the demons saw them running and started in pursuit. "We are lost now!" thought Dave, but continued to run, and urged his parent before him. At last both gained the diving bell, all but exhausted. Entering, they snapped the door shut and sent the signal up.