Brinque Books (follow the link for a portugese summary of my story). It is a soft cover, but actually a little larger than the original. Some other, very subtle differences are fun to spot. They took great care with my book and I hope it'll reach many children in Brazil!
Due to the great efforts of my US publisher, Bloomsbury, HAT has been translated into 7 languages now, on multiple continents. Many thanks to Bloomsbury and all the foreign publishers!