The commander stopped his resistance, and at the same time felt about with his legs until he had them well braced against a lower tentacle. He pushed gently, and came a few inches nearer the glass; a little more. Then, with a quick, strong jerk of his body he crashed the steel frame of his helmet square against the cuttlefish's sheathing of glass. The creature was taken wholly by surprise. Tentacles whipped out to tear the rash human quickly away--but not before Keith had pounded again, and heard the splinter of smashed glass! He had jabbed a hole in the glass body-piece, and already the life-giving water was pouring out! Panic seized the king, and he became a nightmare of tortured tentacles. Wells was flung wildly away and fetched up against the side of the jar with a crash that for a second stunned him. More and more water poured from the octopus' suit, and air at once rushed in to take its place. The creature's great eyes became filmy, while the revolting spidery body slewed here and there across the jar, all the time whipping and thrashing at the strangling air. Keith scurried from side to side, trying to keep out of reach of the crazy, writhing tentacles. Once a glancing blow knocked him flat, but the monster was altogether unconscious of him and he got away. Little by little the terrific whipping and coiling of the tentacles quieted down. The drowning king lay in one place now; its loathsome red body, no longer protected by glass, turned bluish. Keith thrilled with elation at his victory. And then, for the first time, he noticed that there was a full three inches of water on the floor--far too much to spill from the king's suit. A quick look around showed him where it came from. There was a long crack in the side of the glass jar, at the place where he had been crashed against it--and water was pouring in! Keith flung himself against the crack, jammed his arm into the broadest part of the leak. But still the water rushed in. The octopus was in its death throes, weakening steadily--but just as steadily the water poured in and rose up the sides of its body. In a flash Wells saw that the liquid would win the race to cover it and allow the monster to resume breathing. "Oh, damn it!" he cursed fervently. "Now I've got to run for it!" * * * * * He stumbled to the port, snapping shut his face-shield as he went. In a moment he had solved the working of the mechanism and was in the water chamber, then outside in the room itself. Fortunately his sea-suit was unhurt. He thanked heaven for that as he tore away a boardlike piece of apparatus and jammed it over the leak in the jar.