Ilia (mirror)

In the mirror universe, Lieutenant Ilia was a Deltan female in the service of the Imperial Starfleet of the Terran Empire during the 23rd century. In the early 2270s, she was the lover of Commander $𝜇$ and served with him aboard the.

On the orders of his father Grand Admiral $𝜇$, Decker instructed three women - $𝜇$, $𝜇$ and $𝜇$ - to attempt to seduce Admiral $𝜇$ in the hope that she would became his mistress and they would have a spy in his inner circle. However, their efforts were fruitless.

Given that all three women were $𝜇$ as was Spock's wife $𝜇$, Decker believed that his plan might to be more successful if Spock was offered something more exotic such as a Deltan. To that end, in 2272, he sent Ilia to rendezvous with Spock on the Enterprise's recreation deck. They sequestered themselves in one of the exercise pods and set to private mode. After Ilia had disrobed, Spock told her that she was extremely beautiful and that her seduction pheromones were very potent even for a Deltan in her sexual prime. He then sent her away and she related the details of their encounter to Decker, with whom she proceeded to have sex.

Spock was able to resist Ilia's charms as most Vulcans are immune to Deltan pheromones. While observing Decker and Ilia using the Tantalus field, he explained to Marlena that he was already aware that they were lovers as his agent $𝜇$ supplied him with that information before returning to $𝜇$. Spock chose to spare Decker's life on that occasion as he believed that observing his activities would prve valuable while eliminating him would tip their hand unnecessarily. However, he left Ilia's fate in Marlena's hands. At 0500 hours the next morning, Decker awoke to find that she had vanished without a trace as so many of Spock's enemies had before her.