This summer my son had a Pirate Birthday Bash. It was big and "piratey" and we read A LOT of pirate books all month to become pirate sauvy enough for the big day. The Night Pirates was one of the many awesome books that helped us get our "ARRRGH!" on.
I have to say the thing I loved best about this book was that the pirates were girls, cute girls, SMART girls that out-smarted the adult men pirates. Coolest twist on a pirate story ever!
I pretty much had it memorized after two short weeks due to my kids non stop requests for it. I actually grounded my kids from this book for a day because they were acting so poorly. What do you want from me, this book was the only thing that would serve as a good punishment for all of them. I swore I would never ground my kids from something that was "good" for them but being a parent is all about doing those things you swore you'd never do (i.e. I will never say, "You're the oldest and you should've known better". I say it EVERY day.)
Enough about me...let's talk about Peter Harris and Deborah Allwright. Check them both out via the links. They have many other books that look like a load of fun as well.