On the day they left Hogwarts, Tris hesitated for a long time before asking Harry whether Dumbledore had mentioned the Philosopher's Stone.
Harry's answer left Tris stunned for the entire journey.
"Dumbledore said he'd already destroyed the Philosopher's Stone, so we wouldn't have to worry about anyone trying to get their hands on it anymore." Harry looked regretful as he spoke.
"It's such a shame. Without the Elixir of Life, Mr. Nicolas Flamel probably hasn't got much time left."
Dumbledore said he'd destroyed the Philosopher's Stone?
Then what the hell is that thing in my storage space? Was the one hidden inside the Mirror of Erised a fake too? Was the whole thing a setup from start to finish, designed to lure Voldemort in and then hit him hard?
Surely that old geezer Dumbledore wasn't playing that many games?
Those suspicions plagued Tris all the way home. After Ron fell asleep, he secretly took out the Philosopher's Stone to inspect it. But no matter how he looked at it, its distinctive magical resonance didn't seem fake.
So Tris found a chance to secretly brew a batch of advanced potion.
Not the Magic Spirit Potion. Its ingredients were far too rare to waste on an experiment. He made Polyjuice Potion instead.
Although being a metamorphmagus let him change his appearance at will, it had one drawback: the changes he could make to his build were very limited.
He could alter it a little, but only within a narrow range, and his total weight couldn't change. Polyjuice Potion had no such restrictions. Whatever the target looked like, he could turn into them.
Tris figured it couldn't hurt to keep some on hand.
He was doing well in Potions Class and had even earned an O for Outstanding in his final exam. Polyjuice