The Isle of Donne (MegaTokyo: Endgames)

Largo lived a life that most Reahtans only dream of; of wealth, fame, and a never-ending stream of battles in the arena. For years, that was enough for him, as it would be for any citizen of the great empire.But then duty calls him to a greater task outside of gladiatorial combat, to the farthest reaches of Reahtan influence, and the enigmatic archmage that served as the biggest thorn in the Empire's side. Within Dominus Augustus's tower, Largo discovers the start of a much larger world...A much larger, much more terrifying world.