'One hour before Invasion the Cyber transmitter units will be launched into Earth orbit. Transmission will penetrate to all areas with immediate effect...' it croaked with sinister detachment. 'And if it doesn't work?' Vaughn inquired calmly. The Cyber Unit sparked menacingly. 'Humans cannot resist Cyber control. Cyber forces will select suitable humans for conversion. Unsuitable humans will be eliminated,' it announced. Packer glanced anxiously at Vaughn. 'Conversion into Cybermen?' he breathed. 'Affirmative.' Vaughn's face betrayed a hint of vulnerability. 'This is not as we agreed,' he murmured. 'It has been decided,' rasped the machine. 'No!' rapped Vaughn. 'We agreed that I should remain in control of the Earth and supply the minerals you require. You will honour our agreement, otherwise there will be no invasion.' His pale eyes were filled with a wild fire. The Cyber Unit oscillated with ominous precision. 'To retain such control you must complete your conversion, Vaughn. You must become one of us.' Vaughn shook his head vehemently.