This is actually an updated version of their book with some extra chapters not in the first published book.
I've been wanting to get this for myself, but I'm afraid I may spend the entire book in an emotional state. I watched the program they had recently on Animal Planet and spent the entire time with tears in my eyes.
This is such a beautiful and emotional story.
There are only two rules at my house: House rule #1. Cats rule. House rule #2. See rule #1.