Great Experiment
From Tardis Wiki, the free Doctor Who reference
The Great Experiment was a mental expansion programme (AUDIO: Planet of the Rani) through which the First Rani hoped to heighten the Miasimia Gorians' awareness. However, the process lowered their ability to sleep and caused chaos. (TV: The Mark of the Rani)
Minister Chowdras was exempt from the experiment and saved Pazmi and Brejesh from it. (AUDIO: Planet of the Rani) Whilst the Rani went to Earth to extract chemicals from humans to allow the Miasimia Gorians to sleep, (TV: The Mark of the Rani) Raj Kahnu, the sole survivor of the experiment, became her successor. (AUDIO: Planet of the Rani)
