Much of thisThis chapter actuallymainly serves as reinforcement.
* Harry gives Neville the Chocolate Frog because Neville has beenwas jinxed by Draco Malfoy. This serves to reinforcereinforces both Draco's disdain for rules and for Gryffindors, and Neville's relative incompetence.
* Snape's refereeing of the match allows some further reinforcement ofreinforces his dislike of Gryffindor House in general, and Harry in particular.
* Harry's overhearing the conversation between Snape and Quirrell serves to reinforcesupports Harry's belief, and thus also Ron's and Hermione's, that Snape is tryingplotting to getsteal the Philosopher's Stone, and that poor, weak Quirrell is trying to stop him.
The only major plot advance at this point is the discovery that it is, in fact, the Philosopher's Stone that is not only being guarded on the one hand, and soughtis onalso thesought otherafter. We are given someA clue asis wellgiven to its usefulness by us being told thehow length of time thatold Flamel has been alive. Clearly, some of the Stone's function has to do with prolonging life. We will find out a bitlearn more than this shortly.
