As to what Sheba herself would have been doing on the planet Morbyx, in such a distant galaxy, well—that's even more of a mystery than Lydia Lavender could fathom. As they say in the 12-Step Anonymous Programs, however, "more will be revealed." I hope. Of course, there is that ancient legend about one of the moons of Morbyx and some allusion to an Einstein-Rosen bridge discovered inside a cave fashioned out of rose-colored Rhodochrosite.
Mekada, Queen of Sheba