Granite

Mistress Granite is the Healing professor at the magical school of Mountaintop.

Appearance and Character
When Nanette is explaining her curriculum to Emily Sanderson, she says of Mistress Granite:"She's nasty; you really don't want to get on her bad side. Strict, unpleasant and some of us think she actually searches out excuses to punish us for misbehavior."One example of this is seen later when a student makes a "very off-color joke" and everyone laughs at it; as punishment, Granite has them all clean the floor with toothbrushes.

In appearance, Granite is often spoken of having an unforgiving or glowering expression.