"I am going to..." She trailed off, humming as she tried to think of the best way to explain it. "I am...essentially going to dissect the curse. Or, well, I'm going to look at it's inner mechanism, if that makes sense. Like taking a clock apart to see how the gears fit together. Except, since it's a spell, I can't actually take it apart--I have to make myself a window to look into it."
She paused, tilted her head at him. "It will likely feel very strange. But if at any point you feel pain, you must tell me, and I will end the spell. It isn't supposed to harm the subject."