Rise of the Seventh Moon

With the discovery of a legendary super-weapon comes a great and terrible threat to all of Eberron in this final Heirs of Ash adventure
 
Ashrem’s Legacy has been found—and it lies in the hands of a madman. As one of the deadliest weapons of the Last War races to Sharn, the greatest city in all the Five Nations, it is up to a desperate band of heroes to stop it before it causes world-shaking devastation.
 
The fate of the world’s fragile peace rests in the hands of renegade knights, fortune-seekers, a thief out for vengeance, and an assassin who bends shadow and darkness to his will. Soon, even the great dragons of far Argonnessen enter the struggle. But behind it all, the Mad Prophet Zamiel begins his final gambit, and secrets buried for millennia will finally be revealed.