Book excerpt: Mattie is nine years old and she worries about everything. Which isn't surprising. Because when you have a family as big and crazy as hers, there's always something to worry about. Will the seeds she's planted in the garden with her brothers and sisters grow into fruit and veg like everyone promised? Why does it seem as if Grandma doesn't like them sometimes? And what's wrong with Mum? Fortunately, reassurance is always close to hand in this first winning story about the lovable Butterfield clan.