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?

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?
anglais

Jago & Litefoot, Series 4 (Unabridged)

Blake's 7, The Liberator Chronicles, Vol. 1 (Unabridged)

In Conversation with an Acid Bath Murderer (Unabridged)

Blake's 7, Volume 11: The Liberator Chronicles (Unabridged)

Blake's 7, The Liberator Chronicles, Vol. 4 (Unabridged)

Blake's 7, The Liberator Chronicles, Vol. 2 (Unabridged)