".....Previously, only the Seelie were capable of free passage among the realms. The Unseelie arrived on this planet already trapped in a prison. Those few that enjoyed brief paroles did so only at the Seelie Queen's or her High Council's behest."
What if an Unseelie prince had been invited and had to "work" for the Seelie Queen, i.e. had to do the dirty work for her? Like being forced to working as a mercenary???