Harry Potter and the Deathly Hallows (no spoilers)

I won't spoil the end of the series for anyone, but I read the 7th book on Saturday and it is a great end to the series. Permit me to say, however, that the 7th book is much different from the others in the series. Darker and such. If you haven't read them, please do. All seven books together make for a great story.