However, Krafchin was actually an Auton, and wanted to use Korte to open a mental bridge to the Nestene Consciousness so they could take over the Earth. Korte was freed and the plan stopped by the Doctor. (PROSE: Business Unusual)
The Sixth Doctor, Mel and Evelyn Smythe met Korte again four years later, in 1993. Since he had last seen the Doctor, Korte had been developing his powers and using them to help UNIT and C19. He was also searching for his missing lover Joe Hambidge.
Korte found himself being held by the Irish twins Cellian and Ciara, who also had Joe Hambidge with them. Joe apparently had no memory of Korte, as he had been brainwashed with two other teenagers to be Nestene slaves. After the destruction of SenéNet, though, the twins came to regret their actions and took care of the teenagers.
What Korte did not know was that Hambidge did remember their time together. His mind, though, had been made unreadable telepathically from the procedures done to him by Senénet and left him emotionally stunted. He continued to feign ignorance so Korte could move on with his life. (PROSE: Instruments of Darkness)