From the back cover:
""...and so, after the Rain of Colorless Fire, the One-Named-In-Whispers ascended to the Spider Throne. In the third year of his ascendancy, Burgred, King of the Mara, refused the tribute of heads the Whispered One demanded. The One-Named-In-Whispers took only himself and Kas, his evil counselor, and devastated the land of the Mara with his magic. Burgred paid with his own head.
Upon their return, Kas struck against his master, so that he might become the master of the Spidered Throne. In the end, both were slain and good people rejoiced.
It is said that not all of the evil lich was destroyed. So great was his power that his Hand and Eye have lived on, working evil over the centuries...."
For centuries, Vecna - archmage, despotic tyrant, the most fearsome of all liches - has been nothing but a fearful legend to the honest folk of Greyhawk. Once the supreme master of all undead sorcerers, even today his Hand and Eye are objects of immense power.
Now something evil is stirring in the lands around Greyhawk. The Hand and Eye of Vecna have been found - and Vecna wants them back."