beautiful planet the Doctor is expecting, he, Peri and Lang find a desolate wasteland covered with giant Gastropod trails. The Doctor is reluctant to go to the palace, scared for his own life, but is persuaded to take Lang there. In the palace corridors they see murals depicting Jaconda's history, depicting the slugs of myth – but it appears that they are now all too real. After avoiding Gastropods, Lang gets stuck in their slime trail. Azmael takes the twins to his laboratory and shows them a storeroom full of Gastropod eggs. Mestor arrives and tries to persuade them that his aims are benevolent. Azmael begs him to stop reading his thoughts and stop Noma watching his every move. He agrees and leaves. Azmael explains to the Twins that Mestor usurped him as leader of Jaconda and outlines a plan to draw two outlying planets into the same orbit as Jaconda. The Twins' genius is required to stabilise those planets in their new orbit. The Doctor, leaving Peri and Lang behind, finds Azmael's lab. In a manic fit of pique, he attacks Azmael, but is restrained by a Jacondan and the Twins. The Doctor apologises to Azmael but demands to know what is going on. Meanwhile, Peri is captured by Jacondan guards and brought before Mestor. When Lang escapes to Azmael's lab and informs them what has happened, the Doctor finally shows compassion for her when he thinks she might die. Mestor refrains from killing Peri immediately, finding her appearance pleasing. Jacondan guards arrive in Azmael's lab and seize the Doctor. The Doctor tells Mestor that he ought to allow him to assist with the dangerous operation of moving the planets, as a single mistake could blow a hole in that corner of the universe. Back the laboratory, Azmael informs the Doctor of the details of the plan to bring the planets into the same orbit — they will be placed in different time zones using time travel technology that Mestor stole from Azmael. The Doctor realises that, as the other planets are smaller than Jaconda, bringing them closer to Jaconda's sun will lead to catastrophe. The Doctor enters the egg storeroom and is disturbed that they have no nutritional mucus. He tries to cut one open with a laser cutter; the shell is impenetrable, but the egg reacts slightly to the heat. The Doctor realises they have been designed