The most auto of autobiographies

In many, if not most societies, there's a common prejudice that assumes that wizards tend to be amoral.
That's not fair. Wizards, more so that nearly any other type of heroes, are able to ignore many of the constraints that other mortals face. While priests may be able to bring others back to life, a powerful and rich wizard is capable of creating their own demiplane, and living in a timeless, personally-crafted realm, free from the struggles and fears of mortal life. Wizards are perhaps supermoral, transcending normal morality for something befitting themselves as fragile demigods. 
But wizards are born mortal. How then do they make the journey from innocent babe to something both greater and lesser than most humanoids? Agamemnon, our Aggy (for the most part) has the memories of previous Agamemnons' seared into his mind. The memories of the 'original' Aggy are present, but tinted by that Aggys' years pickling himself in bitterness and regret, deep within the Myrrn. Our Aggy can sift through the memories, and try to tease the truth from the murky depth of the original Aggy's mind.
Agamemnon Gro'Tesh was born to an orcish mother and human father in 6789D, in the fading glory days of the fourth age. He does remember his parents, but only through the lens of a child. His father, a kind and pious man saw that his son got a proper education that the young Aggy took to with enthusiasm. His mother, hot blooded and outgoing, wanted more for her son that their coastal town could offer him. When he showed an aptitude for magic he was hastily sent to the capitol for further education. The magic college (perched in the sleepy floating city of Delmexia) was serviceable enough, giving Aggy the tools he'd need to become a powerful wizard, in due time. Aggy on the other hand, was bored out of his mind by the slow pace of academia. He longed for adventure, and the coastal expanse he called home.
Adventure came easily to Agamemnon. He bought a ship, and sailed the coast plundering ruins and anything else that crossed his path. He gained a reputation for his loyalty to his crew, and for being a friend to the local navy, the Blue Marines (no relation to Mirrax). Had nothing changed, he may have remained "the wizard of the waves" for the rest of his life. He'd long since given up researching new spells or seeking new knowledge, instead contenting himself with the new experiences and treasure that every day brought.
That changed however, when he met Akbeth Estella, Chosen soul of Hecate. Agamemnon's memories of her are anything but objective, but she turned his life upside down. She was beautiful and wild, in the way one only gets from combining youth with bottomless power and the cunning to make use of it. Akbeth was keen on Aggy, but saw him as squandering his potential (which Aggy was unable to deny).
Together, they left the familiar shores behind them, and went from city to city (and later, form plane to plane) doing Hecate's bidding. Being a champion of Hecate was a natural fit for Aggy. Days were spent burning and slaying Hecate's enemies, and nights were spent pouring over forbidden tomes and infiltrating cults. Much of this was stuff that our Aggy would find morally reprehensible at best, and outright atrocious at worst, but the original Aggy saw no problem with it: When two powerful and charming women tell you you're doing the right thing, one tends to listen. It's very possible that the original Aggy knew he was doing works of great evil, but he was too selfish to care about anyone other than himself, Akbeth and Hecate.
With their combined might, Hecate's power grew and her star rose ascendant over the lush plains and forests that even then was known as the Stoneheart Valley. This was a glorious moment for the god of secrets, and she showered Aggy and Akbeth with power and trinkets. Akbeth was both a cleric and a sorceress (common for Hecate's priestesses), and adept at fusing the arcane and divine into an awesome power. She was a transmuter, fascinated at how one thing could be turned into another, or how two things blended together could become something greater still.
Years before, Akbeth had pulled Aggy away from the sea, certain that together they could become something greater. Again, Akbeth asked Aggy to join her on the next stage of her adventure. Hecate (while the dominant god in the Valley) was now too small for Akbeth's goals. She lusted after still greater power, and planned to leave Hecate's service. Trying to keep a secret from the god of dark secrets proved too much for even Akbeth, and Hecate learned of her treachery. 
Hecate offered Aggy a choice: Kill Akbeth, and pledge fealty to Hecate, or Hecate would destroy them both. Aggy didn't see that he had much of a choice, and the selfishness that had always lurked within him finally won out. He could bring himself to harm Akbeth, so instead he lured her to a place holy to hecate within Rappan Athuk. There, Hecate turned Akbeth into stone, in a mockery of Akbeth's own powers of transmutation.
Agamemnon built a grave for his lover, and sealed the area behind a great set of mithril gates (indestructible, of course) so that Akbeth would at least be undisturbed in death. Then, for the first time in decades he turned back to his studies. He feared Hecate would press him back into service, or possible destroy him as well. He sought immortality, so he would be finally free of her. He could not find a way to be free of Hecate, so he devised a contingency: he would fake his own death. This was no mean feat, but much easier than finding how to defeat a god. 
He knew that if he were to die, Hecate would raise him anew. He knew of the Butcher and his myrnn, the place where that foul creature would torture the last secrets out of a soul before sending it off to Hecate. Killing the Butcher and taking the myrrn was relatively straight-forward, but what came next would be far more dangerous. Constructing a ritual based around vampire blood, he planned to take the part of himself he would no longer need. He took his passion, his love of Akbeth, his studious nature and hewed it from his soul, transforming himself into a vampire in the process.
Then he waited. He knew the fragment of himself would be reborn, and had crafted it carefully so it would seek out two things: the reborn Akbeth, and immortality. Before sealing himself within the myrrn he organised agents (including Villix) to help return future Agamemnons to the myrrn. His plan was that one of his future incarnations would return to him with both Akbeth, and a method of immortality that would allow them to be free of Hecate forever. Sadly, the plan wasn't to be. The reborn Akbeth was just a fragment of her soul; Agamemnon guessed that some trickery on Akbeth's part had hidden her soul away, just as he'd done with his own. So too were the methods of immortality flawed: Without Akbeth to guide them, the Agamemnons were unable or unwilling to better themselves, and most died weak and petty.
Still, the original Agamemnon watched and waited. The soul of Agamemnon kept twisting and reducing, like a photocopy of a photocopy. Some things were set; he was pious and clever and loyal, but the lust for power and greatness seemed to faded from him forever. 
Meanwhile, the blaze of fire that was Hecate's ascendancy through the pantheon of the Valley quickly stuttered, before going out forever.