We'd decided to write a book about two friends. I gave her some coffee and then we sat there not knowing what to do. How do you start writing a book together? So Kate [DiCamillo] got up after about 10 minutes into this endeavor, and said, 'Well, that was fun,' and started to head out the door. I said, 'Wait, wait, wait, no no no,' because I'm a bit more patient.