sentences:  Refa appears on Babylon 5 shortly after the only son of Emperor Turhan dies, leaving a gap in the line of succession for the Centauri throne.On his first visit, Refa makes it clear to Londo that he speaks for a group of Centauri politicians who are interested in making a move for the throne after the death of Turhan, whose health is in rapid decline.In an attempt to restore his wounded pride and prestige, Londo naively allies himself with Mr. Morden for assistance in dealing with problematic Narn military outposts, unaware that he is the intermediary for The Shadows.