Following Professor Dumbledore's instructions, Alistair poured the potion onto the letter. His name instantly appeared on the previously blank parchment.
"Open it and see, and remember to say the incantation," Professor Dumbledore winked at him, whispered an incantation, and then turned to Professor McGonagall. "Minerva, let's step aside, I have some things I'd like to discuss with you as well..."
Holding the Two-way Mirror with a solemn expression, Professor McGonagall walked toward the corner of the office.
Chapter 449