It’s been hard keeping quiet about this, and now I don’t have to. From Publishers Weekly:

Alvina Ling at Little, Brown has bought world rights for Chris Barton and Tom Lichtenheld’s companion picture book to Shark vs. Train, for publication in spring 2013. Erin Murphy at Erin Murphy Literary Agency is the agent for the author, and Amy Rennert at the Amy Rennert Agency is the agent for the artist.

So, what is this “companion picture book,” you ask? Well, if you remember how forthcoming I was when I sold Shark Vs. Train to Little, Brown four years ago, you’ll know just how easy it’s going to be to pry that information out of me.

But I will tell you how pleased I am to be working again with Tom, Shark, Train, Alvina, and the rest of the crew at Little, Brown. And I can think of at least one other person who will be glad to see the arrival of spring 2013…