Gertie feels stuck in her smallness. She wants to grow up and have bigness and tallness, with the hugest of hooves and humongous horns too! Because there isn't anything 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 come calling for Gertie to help them with a daring and dangerous task, could it be because it’s something only a small yak can do?

Taking place in a delightful winter landscape full of adorable yaks in woolly hats and coats, this picture book is a heartwarming and relatable story of individuality, self-esteem, and the joys of being young and small.