I'm glad that Draco intervened. He's really been great to Harry which is a good return for how that situation was reversed when Lucius died and Narcissa had to be rescued. Great chapter. I'm still a little unclear about the first potion and why there had to be more than one, but I'm glad Severus got to speak some of his words and put himself out there on the faith that Harry would react positively (though he hadn't).