hostile jungle. As the Doctor heads off to find Zastor, Romana stumbles across dangerous vegetation – deadly bell plants – and then the Gaztaks, waiting patiently for Meglos to return to their spaceship. She gives them the slip after a while and heads off to the city. Meglos has used his time as the Doctor to steal the Dodecahedron, shrinking it to minute size. However, the Earthling fights back against his occupation, causing green cactus spikes to break out on his skin. When the Tigellans discover that the Dodecahedron is missing and sound the alarm, Meglos hides away, but the real Doctor arrives at the same time and is accused of theft. His bewilderment and charm are little defence as both Savants and Deons start to panic as the energy levels of the city start to fail. Lexa uses the situation to her own ends. Zastor and Deedrix are arrested in a Deon coup, with other Savants expelled to the hostile surface of the planet, while the Doctor himself is prepared for sacrifice to Ti. The doors of the city are sealed with Meglos trapped inside, with a hostage Savant named Caris for company. She soon gets the upper hand when the Earthling tries another bout of resistance. In a subsequent mix-up, Romana overpowers Caris, letting Meglos escape and reunite with the Gaztaks, who have staged an attack on the city to rescue him. With the miniaturized Dodecahedron in his possession, the pirates blast off back to Zolfa-Thura – though three Gaztaks, half the crew, have been lost. The real Doctor has by now been able to prove that he did not steal the artefact and that there is a doppelgänger at work. Lexa realises her mistake but does not live long to regret it when she is shot dead while protecting Romana from a wounded Gaztak who was left behind. The Doctor, Romana, Caris, and Deedrix head with K9 for the TARDIS, determined to follow the Gaztak ship. Grugger’s ship touches down on Zolfa-Thura and Meglos wastes no time in restoring the Dodecahedron to full size and placing it at a spot equidistant between the Screens. He reveals his race perished in a civil war over the control of the crystal, which can power a weapon strong enough to destroy planets. At Grugger’s urging Meglos decides to use the weapon again and to aim it at Tigella. When the