Hermione spent nine hours on the embroidery. It could have gone faster, but two hours in she realized that she’d mixed up the direction of the X’s, and the shop lady was right, it looked terribly imprecise. So she undid her work, and found deep satisfaction in that, too: that she could choose to fix the mistake or not, that it could be swept completely off the fabric with no-one the wiser. She liked the process of picking the wrong stitches out, the friction of the thread pulling out from the fabric, and putting them back in place.