He began to shout. He didn't mind using his breath. He had very little left to use. He shouted in wild panic and began to run, nowhere in particular, butting and stumbling into the fungi, searching desperately for someone to help him before he died. "Where are you?" the voices were clamoring in his helmet. "Where are you?" And he kept screaming, "Here!" as though the word had any meaning, as though they could tell from the sound of his voice whether he was ten feet or half a mile away. The automatic valve-seal had closed at once to prevent the escape of what air there was in the armor, but it was getting hard to breathe. His lungs would exhaust the last of the oxygen in a minute or two, and then he could either suffocate in his armor, or rip off his helmet and burn his insides out with the methanated poison this world used for atmosphere. It was a lousy way to die and he didn't like it, and he couldn't figure out how it had happened. He must have fouled his line on some part of the fungus, that nasty one that looked like a monstrous brain. He must have passed too close to it and got hooked on some tough projection.... It was getting dark and he was sick at his stomach and his lungs were pumping, laboring, achieving nothing. He tried to yell again, and couldn't make it. His knees caved under him and he fell, almost into the arms of a shapeless but human figure that was saying a lot of things he couldn't understand. He felt himself rolled over. There was a moment when the darkness closed down almost completely and then a stream of oxygen, pure and fresh, poured into his helmet. The mechanism that had so nearly stopped began to work again, not smoothly, with a good deal of gagging and choking, but working. Somebody's voice penetrated to him, telling him for God's sake not to get sick in his helmet, and he managed to sit up and look around. Two men were bending over him, and a third stood behind them. He could recognize them through their face-plates. None were his bunkmates. There was somebody else behind him, holding him up. Voices were still clattering inside his helmet, demanding to be answered. He thought he heard Rohan and Perri, but he wasn't sure. "Who's that behind me?" he asked. His own voice came out as though there were hooks on it. His throat hurt. "Who's there?" "Me. Yann. Welcome back, Trehearne. I thought for a minute you'd gone over the edge." "Damn near it." His tongue felt like a feather bolster. "I don't know what happened...." "Your air-line got snagged," said one of the men helpfully, telling Trehearne no news. He grunted and said, "But how? I thought I must have hooked it on one of these ugly brutes, but they break so easily...." "They toughen up as they age. Look here." The man reached out and took a horny protuberance in his hand. "Plenty of resistance, especially if your coupling was not properly tightened."