From the back cover:
"The Stone Scepter has been recovered!
But will it be enough to stop the Raja of Solon? Ambuchar Devayam has massed 10,000 zombies on Ra-Khati's border. Only Gaumahavi, the Great Dragon of the Purple Wastes, stand between him and the Hidden Kingdom. Yet even she cannot face Ambuchar alone, for the evil raja has recovered an archaic Imaskari relic that render him invincible.
If Ra-Khati is to be saved and the player characters are to escape the raja's curse, Ambuchar Devayama must be stopped. But how? The player characters' search for a solution will embroil them in Tuigan politics, lure them to the Red Mountain Monastery's forbidden halls, and lead them into ancient Solon itself, where Ambuchar's slaves - both living and undead - toil to make him even more dangerous."