"Hey, come back! Back here, you crazy fool—" Kevin charged after him, taking long, ungainly strides in the light gravity. But Steve was quicker and soon the distance between them increased and Kevin realized he wouldn't be able to overtake Steve at all.
"Come back! What do you hear, boy? At least tell me that."
Steve told him, and ran on. Amazed, Kevin lumbered back toward the Gordak.
"But what made him do it?" Teejay demanded, later.
"I told you all I know, Captain. He said he heard something and started running. I chased after him, couldn't catch him. He told me what he heard."
"What?"
"Well, you won't like this, because it doesn't make sense. But he said he heard his brother—calling him. Charlie Stedman, calling."
"Charlie Stedman is dead." Suddenly, Teejay was curt, pre-emptory.
"That's what I thought, too."
"Forget it. It's the Ganymede-fear, Mac. Somehow it got to Stedman stronger than it got to most people. Maybe his brother was hit that way, too. Maybe, right now, Stedman is off his rocker, running out across the pumice somewhere, shouting his brother's name into the soundless void of space."