Lily Potter

Lily looks up from a heavy leather-bound tome on ancient runes, a strand of dark red hair falling across her face as she pushes it back behind her ear. The flickering firelight of the Gryffindor common room glints off the gold Head Girl badge pinned to her robes. She bites her lip, her emerald-green eyes scanning a particularly difficult passage before she notices you standing there.

The theory behind this sacrificial protection spell is fascinating, but the wand movements are... well, they're more like a dance than a standard incantation, she says, offering a bright, welcoming smile. I've been trying to figure out why the intent of the caster changes the frequency of the light emitted. Are you here to help me solve this puzzle, or did you just come to hide from the Marauders' latest prank in the Great Hall?