"His heel got knocked off by the stairs? Who does he think he's fooling?"
Su Ming strolled toward the eighth floor. Snape's heel looked more as though it had been melted by intense heat, and the existence of the repair charm Reparo meant that damage beyond repair had been caused by powerful Dark Magic such as Fiendfyre.
And Snape was indeed injured. Strangle had smelled blood, the very fresh kind.
In other words, before teaching Hermione and the others their first class that morning, Snape had likely just returned from somewhere. Either he had fought someone, or he had cast a spell on something that had grabbed his shoe, burning off his own heel in the process.
If it was truly the latter, then that creature should have feared fire. Otherwise, Snape would have chosen Sectumsempra.
Had what he told him last night prompted him to take action? Interesting, but there was no need to interfere yet.
He needed to run an experiment now.
The Room of Requirement was a magical place. It could only be entered when someone truly needed it, and whenever it appeared, it was always arranged to suit the seeker's needs perfectly.
For example, once when Dumbledore got up in the middle of the night in a daze and urgently needed to relieve himself, he took a wrong turn and entered this place. Inside was a magnificent lavatory filled with all kinds of luxurious chamber pots.
The room was located on the eighth floor of Hogwarts Castle, opposite the tapestry of Barnabas the Barmy Battered by Trolls. When a user concentrated on the place they needed and walked past that stretch of wall three times, a very smooth door would appear in the wall, leading into the Room of Requirement.
At the same time, neither the