It wasn’t magic, exactly, to put your hand on top of a book. My palm tingled, much as my skin tingled when a witch looked at me, and the tension left the manuscript.
So is the book like a trapped witch in the papers? Maybe it was written by her ancestors and had the soul of one of them (the one that burned at the stake perhaps).
It’s giving horcrux and Voldemort and how the diary Ginny got had its own mind and even was able to communicate with her.

