Polyjuice potion was a fickle brew. She learned that the hard way when she was in second year. It still amazed her that she was able to brew it successfully at such a young age. Many tried and failed to disastrous results. She was fortunate that she didn't end up killing her best friends. Her unexpected visit on Saturday prevented her from checking it one day that weekend. To her relief when she was able to slip out of her house on Sunday for a few minutes, everything was as it should be. She wondered if Draco made a visit to the crumbing townhouse in her absence. Or if he might stop by again when she showed up that day.