I did the same thing when I read the first book - went right out and got books 2 and 3. Thing is, while I loved them as I was reading them, once I put them down I am pretty ambivalent about reading books 4 and 5. I think if I re-read book 1 I'd probably feel a lot more excited about it, but I got book 4 from the library and I never got into it. (But I was doing other stuff at the time, and library books have a deadline to return, so I just gave up.)

Chime is also my favorite!