This was an excellent chapter.  I really thought Harry was going to have to get into more danger on his journey, but this was just right.  Instead of danger, he learns that he is powerless to change anything.

And I am very intrigued by what Severus is doing with the hypnosis.  I'm assuming that he is giving Harry a chance for closure.  After this, I hope we can see some real progress in Harry and Snape's relationship.