Second scientist (The Mutation of Time)
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During the Time Destructor Incident on Kembel in 4000, the Black Dalek Leader was assisted by two scientist Daleks including the chief scientist: the first scientist and the second scientist. Together, the two scientists tested the Time Destructor on Trantis, exterminating him after learning that the Taranium Core was a fake. (PROSE: The Mutation of Time)
