''MISS CRIUS!'', McCoy ejaculated in an angered voice. ''That is no way, especially in my classroom, of speaking to any of your peers! Twenty points from Slytherin, a two-week detention and homework for you! Next time you even utter something similar to this you'll be kicked to your Dungeons without the blink of an eye!'', he said, angered.
He needed a moment to calm down, hence the small break he took. ''Now, as to the question. Theoretically, you could transform even a large mountain and a planet into a lab rat, but the level of energy and ability of such a wizard is would have to be so immense that even the slightest idea about the existence of a wizard is pure imagination. Theoretically, the borders are almost non-existent, but practically... they are there and nothing you think or say can change that. What Mister Grigori was referring to are Gamp's Laws, and the mentioned First Law of Matter. Basically, you cannot create Something out of Nothing, even Muggle philosophy confirms that thesis. Now, does anybody know anything about the law? What do they relate to?'', he asked.