"About the improvements to the Wolfsbane Potion," Will began evenly, "the cost is indeed an issue.
"But the primary aim of these improvements was not simply to cut costs or make the potion available to every werewolf. We must recognize that as a much larger and more difficult social problem.
"My goal, along with Professor Snape's and Professor Dumbledore's, was first to establish whether the toxicity could be removed while preserving or even enhancing the potion's effectiveness. We wanted those who drank it to survive, not die from a potion so important to werewolves.
"As you've no doubt noticed, I replaced Wolfsbane with Dragon Blood. That removed the toxicity, while the Dragon Blood also extended lifespan and provided greater mental stability.
"This lays the groundwork for developing a cheaper, more effective potion in the future. Perhaps we'll find a substitute for Dragon Blood and bring the cost down. As for the life-extending effect, opinions may differ."
"As for Professor Snape and Professor Dumbledore, I made their contributions clear in my paper. Professor Snape taught me the entire method for brewing the Wolfsbane Potion and gave me ample materials and a place to conduct my experiments. Everything I know about Potions came from his teaching.
"And Professor Dumbledore's discovery of the Twelve Uses of Dragon Blood is widely known.
"Those papers inspired me to replace Wolfsbane with Dragon Blood. Professor Dumbledore also supplied the Dragon Blood because he believed my research was valuable.
"As for the potion's stability and effectiveness, the appendix records twenty-seven batches brewed under different conditions, along with several clinical trials. If necessary, I can provide my original notes."
"Did you use werewolves in those clinical trials? I want to meet the test subjects."
"I'm sorry, but their identities will never be disclosed. If you're interested, Mr. Fernando,