Muir winces, then pulls a long rope out of his bag and hands one end to Jeffery. "I'm going in after him," he says with a grimace. "I can't sit back here without helping a fellow water-tribesman. And we don't know if Riyu can bring him up, so at least this way we know we'll be getting him back. I'll yank on the rope three times when I want to come out..." He seems uncertain about his idea, but unwilling to give it up without trying to save another of his tribe.