"Accidentally?"
Hermione's expression immediately grew a little unnatural. "That's not important! What matters is that in one of the rooms there, an enormous dog with three heads was guarding something."
"Oh?"
Audrey immediately became interested. "What was it guarding?"
"We don't know. We were terrified and hurried away."
She lowered her voice. "But later, we found out a few things from Hagrid. That enormous three-headed dog is actually a pet he keeps... forgive me, but even now I can't connect what it looks like with the idea of a pet."
"Hagrid was very nervous then. He said loudly, 'Forget that big dog, forget what it's guarding. That's between Professor Dumbledore and Nicolas Flamel...' Yes, he hurriedly covered his mouth right there."
"But that information was enough! With Harry's reminder, I finally found information about him in the library. Nicolas Flamel is the only known maker of the Philosopher's Stone!"
Audrey was surprised. "The Philosopher's Stone? What's that?"
Beside her, Ron couldn't resist showing off. "It's a creation of ancient alchemy with amazing powers. It can turn any metal into pure gold and produce the Elixir of Life, which makes anyone who drinks it live forever. Thanks to the Philosopher's Stone, Nicolas Flamel and his wife have lived for over six hundred years, and they're both still alive."
At this, Ron couldn't help fantasizing. "Blimey, endless pure gold and a long life. That would be wonderful."
Harry retorted, "And none of it has anything to do with you."
Audrey looked thoughtful. "So what that three-headed dog is guarding could very well be the Philosopher's Stone?"
Thinking back to Edward's earlier conversation with Dumbledore, that guess seemed even more reasonable. Was that the trap where Dumbledore was using the Philosopher's Stone to lure Voldemort?
Audrey looked at the Trio and asked, "Why