Imperial Masquerade - The Two Moons of Rehnor, #11

Two years ago, the Imperial Couple disappeared with neither a trace nor body to be found. While struggling to keep the ship of state afloat, Steve and Rent are forced to deal with the decline of the Empire, the bankruptcy of SdK, an impending nuclear war, and worst of all, a destructive fire in the Palace, which levels the Seven Nags Pub. In the meantime, a strange boy and a black eagle appear in Karupatani reminding the old timers of both a boy and an eagle from years past.
Who are they and why have they come?