Chapter 115

The next day, Harry and Hermione found a room inside the Room of Requirement perfectly suited for potion-making. It had everything: standard pewter cauldrons (pewter, standard size 2), several sets of glass and crystal vials, and finely calibrated brass scales...

Hermione was still marveling at the wonders of the Room. “What potion are we brewing?”

Harry pulled a thick book from under his robes—Standard Book of Potions—and flipped to two marked pages. “We’re making these two.”