Elba II (mirror)

In the mirror universe, Elba II was a planet under the control of the Terran Empire during the mid 23rd century.

In 2269, a gathering of Imperial Starfleet personnel took place on Elba II to acknowledge and celebrate the recent promotion of Captain $𝜇$ to the rank of Admiral. In attendance was Grand Admiral $𝜇$ and his wife $𝜇$, an $𝜇$.

Garth's intention was to use his ability to shape-shift and disguise himself as Spock; he would then have himself beamed up to the ISS Enterprise (NCC-1701) where he believed Spock had some ultimate weapon hidden in his quarters. Unknownst to Garth, Spock had learned of his shape-shifting abilities from Captain $𝜇$'s log entries and had prepared for any subterfuge on Garth's part.

Garth and his wife were subsequently disintegrated by $𝜇$ who had been observing the pair through the Tantalus field. (TOS novel: The Sorrows of Empire)

It is unknown if the mirror Elba II had an asylum on its surface as in the case of the Federation-universe Elba II.