Who am I? Where am I? What am I supposed to do? Who is this person in front of me, and what is he trying to do?
As the discussion turned to physics, thermodynamics, and entropy, Harry quickly became utterly bewildered.
"Look, if I turn these stones into wood, they can burn for a long time, releasing a great deal of heat. Stones can't possibly burn in an ordinary fire, let alone produce that much heat. Burning increases entropy, but when the Transfiguration ends, the charcoal turns into stones that have been subjected to intense heat, and some of it turns into stone dust. Yet none of those things absorb the heat the wood produced." Will spoke with relish. "Don't you think that's fascinating?"
This was a special closed loop made possible by magic: "one-way energy release, matter returning to its original state, and no accumulation of entropy." Muggles could never catch up with wizards who possessed such miraculous abilities.
This was a fundamental difference in productive capacity—the flames Hermione and Sylvia had bottled in jars were further proof. Those things did not even need oxygen to burn.
The more Will talked, the more excited he became, glancing at Harry from time to time. Harry, however, could only stare blankly back.
"By the way, Will, why did you suddenly give me that gadget?" As time passed, Harry sorted through his thoughts and noticed something odd.
"This morning, I suddenly had a premonition that something would happen to you, and everyone at Hogwarts would be looking for you. There wasn't much time left, and I didn't know exactly what would happen, so all I could do was give you a little tracking gadget," Will lied. "These kinds of prophecies rarely happen. Honestly, I never even knew I had a gift for