I'd have to check; it's been a while. I remember I read all five as one book, though, so I'd have a difficult time recalling individual "endings." I do remember a few things early on that just didn't seem to "jive" with meólogically or continuity-wiseóbut those things were almost always dealt with satisfactorily at some point in the narrative.
Must've been the flu.
(spoilers only for those who haven't read books one and two)