The Doctor tells Ace to end her relationship with Jan, but she thinks he is simply jealous and doesn't want her to abandon him. The 'Papers of Felsecar' contains a message from a future Doctor, who has left behind the cypher to translate the Heavenite message. Ace spends the night with Jan who reveals that his secret name is Aradath, which means 'big fire', in relation to the prokinetic abilities he gained from the military drugs. Suddenly, a cloud of fungal spores drifts into the camp, but in the confusion it is impossible to tell who was infected. Christopher appears before Ace, in a reanimated corpse. He warns her that if she stays with Jan she will be forced to make a sacrifice.