In the Recreation Centre, Carter finds Etrec in the throes of the killing sickness. Forehead pulsing with the hated symbol, the boy turns on his friend, a steak-knife poised to strike. Instead he plunges it into his own forehead, trying to gouge out the shameful mark. Before collapsing, he offers his blood to Carter. During this, an alien spacecraft approaches the Moon. It hails from Archanon, having come to warn the Alphans of the danger posed by their freed kinsmen. Growing weaker, Etrec asks for the Archanon device. Another recording reveals the missing pieces of the puzzle.