[If he did it the legitimate way, Zacharie could get in easily. But he couldn't take books out, make copies and bring it back. He's fast, but not that fast and they'd have his name on record. No thank you. He'd rather them just deal with one going 'missing'.]

Rather cheap ones too, sadly. There's only so many times you can magic a signature before it becomes obvious.

[Practice the handwriting by hand guys, it's not that hard. Or maybe it was because he had practice long before coming to Hogwarts. But anyway...]

Excellent! I will be able to see them very soon. I'll have your book delivered at the earliest convenience. However, if I cannot find you is there anywhere I can put it?

[Like away from a certain Professor that Frisk is close to? Because yeah.]