Dudley was horrified to learn that Harry was a wizard. Things suddenly made both a lot more and a lot less sense at the same time. That explained why Harry was so different… But if Harry really had so much power, then why did he just spend all of his time in that closet of his? As Dudley gradually explored that line of thought, he suddenly realized something. Harry didn't deserve to have magic. He deserved to have magic. It was so unfair. Why did Harry have so much power, while he had none? He could certainly put it to better use than Harry did. Then, a thought came to Dudley's mind. What if there was a spell or potion or something to give him magic? No, thought Dudley. If there was a spell like that he would find it, and if there wasn't, then he would make one himself. Now, how did one get in contact with witches and wizards? He had heard Petunia mention a leaky cauldron, or something of that kind.

Dudley wandered through Diagon Ally. Holy crap! This was awesome! He squeezed down his jealousy of Harry. He hadn't come down here to look around: he had a job to do. Dudley walked into a bookstore.

"Hello, do you have any books on how to turn someone into a wizard?"

"Sorry," said an aging clerk, "but why on earth would anyone want to turn a muggle into a wizard? I doubt anyone has really put much thought into it – wizards don't really pay attention to muggles much."

Dudley's heart sank. "So has anyone tried something of that kind before?"

The clerk shrugged. "I mean, I reckon you could probably repurpose a dark power-boosting ritual for that purpose, but dark rituals of that kind would require-" and here the clerk leaned closer, and spoke more quietly, "-a human sacrifice."

Dudley blanched. He couldn't kill a fellow human.

The clerk, not noticing Dudley's look continued. "Of course, you would have to go to Knockturn Alley for that kind of information. We don't sell books about power boosting rituals here, of course."

Dudley left the shop, and after that, Diagon alley, without saying anything.

He was back the next day. The thought of power was too much to resist.