What an excellent question. "The library, I think," William answered, taking a step further back into the shadows as they paused. "If the children are safe. Wherever I can be of the most use. Brendon's all right?"
He saw something move at the end of the hallway and nearly flattened against the wall again, but then recognized the stature of the figure as slightly - very slightly - taller than the average House-elf. "Patrick's here," he said, chin jerking in the direction of the figure. "After we make sure you get to Hufflepuff, I can head back with him."