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The Catalyst was the eighth release in the Companion Chronicles audio range. It was the fourth story of season 2. It was written by Nigel Fairs and featured Leela.

Publisher's summary Edit

The pride of the Z'nai matches that of Leela of the Sevateem. Why would the Doctor imprison one in such an unlikely place, and what terrors will be brought about by letting it loose?

Plot Edit

to be added

Cast Edit

References Edit

Notes Edit

  • This story strongly implies that Leela survived the Last Great Time War.
  • Chronologically, this is the earliest Big Finish audio drama to feature the Fourth Doctor.
  • This audio drama was recorded on 3 June 2007.
The Catalyst clean

Textless cover art

Continuity Edit

External links Edit