Those Who Do Not Study Alchemy See Him as the Moon in Water; Those Who Study Alchemy See Him as a Mayfly Beneath the Blue Sky

The crafting recipes had been modified with magic, so consider yourselves warned.

"Strictly speaking, out of this entire field of knowledge, I've only taught you about alchemical crucibles, and at most I might add alchemical golems. I haven't taught you anything beyond that, mainly because this body of knowledge is too dangerous. You little wizards can't handle it." Kayson patted the massive black pillar at the corner of the Infusion Altar as he spoke.

"Er... just how dangerous could it be?" The Weasley twins raised a very pointed question.

"At best, an explosion. At worst, you contaminate part of the terrain. I'll start by teaching you how to build a basic Infusion Altar." As Kayson spoke, he led the Weasley twins out of the little glass house, as though he had brought them there merely to let them see it.

"First, your wands need an upgrade." Kayson pulled out his rosewood wand. Unlike an ordinary wand, its tip and butt were made of metal. That was all.

"What should we do?" the twins asked.

"Don't rush. I'll teach you from the beginning. Come to think of it, you're the first little wizards to truly learn something substantial in the field of mysticism. But this subject is indeed far more dangerous than other kinds of magic."

"For example, if Transfiguration fails, only you—or perhaps a few people very close to you—get hurt. But if a high-level mystical application fails, the damage will be widespread contamination that cannot be repaired, only destroyed."

"You two have rather impulsive personalities, which isn't good..." Kayson paused here, making the Weasley twins frown.

"But correspondingly, you're also very responsible. I don't think you'd stand by and let the whole world bear the consequences of your mistakes." Kayson's sudden turn made the twins' brows rise again.

"Professor,