Defiler's Curse

In the quest to save my life, I delved into unnatural powers and changed myself utterly. I mastered new forms of Magic and discovered others. I expanded my knowledge, learned, and grew; both as a Magician and a man. It wasn't enough. All I managed to do was to buy myself some time, and now that time is running out. My brother has fought me every step of the way. He even murdered my one hope of a cure, and in his demented desire to finish the job, went digging into mysteries he had no business with. Now, he's been taken. Body and soul possessed by the first conqueror, the monster who destroyed mankind's first stab at complex civilization. Desmond was dangerous when he was simply the First Shadow. An idiot with power is still lethal. Now, he has the power of an Archon coupled with the ability and intellect of the very first Black Magician. I couldn't stop him before. What the hell am I going to do now?