"The pattern shows you where to make the little X’s," the lady explained, showing a sheet of paper to Hermione. "Different colours have different symbols. The fabric in there," she nodded at the kit, "has easy-to-spot little holes in a grid. You take the thread, and you go—" She poked the thread through a hole in the fabric. "First from the top right to the bottom left, and then—" she sent the needle under, then back up again, "from the top left, to the bottom right." She laughed. "Or, whichever corner first, it’s fine. The idea is to lay the / side of the X before you lay the \ side of the X. Then they all go in the same direction, see?"