Kate Hindley

Gertie is great at being the littlest yak, with the whirliest wool and grippiest hooves of the pack! Only, Gertie doesn't want to be the littlest. She's in a hurry to grow up--with the hugest of hooves and humongous horns, too, there isn't a thing a big yak can't do. So Gertie devises a growing-up plan. She eats her veggies, exercises every day, and reads lots of books. Still, she isn't any bigger. But when the other yaks ask for Gertie's help, it...