Just to prove that the world is a cruel and unjust place, I've just read news that Abadazad book three, "The Puppet, the Professor and the Prophet", has been pulled by its publisher, Hyperion Books for Children, and will not be seen in bookstores this side of the Atlantic. To add insult to injury, they will also no longer be publishing any Abadazad books, effectively cancelling the series where it is at book three.
For more info, check out J.M. DeMatteis' Amazon blog here and to purchase your copy of book 3 go here.
I'm going to go soak my head or something.