The first book in an enchanting new series from the author of the bestselling THE BOY WHO GREW DRAGONS, full of unexpected adventure, wonder and wildness, and just a little touch of magic!

Have you ever looked at a tree and seen a face staring back? Maybe you spotted a knobbly brow or a knotty pair of eyes, or even a mossy beard? Well, next time you do, stop staring and say hello!

When Iggy discovers overgrown Wildtop Wood at the end of his new garden, he couldn't be more excited. A whole new world opens up for him and his brother Cal, high in the treetops, a world of tangled greenery and unexpected adventure.

But some say the wood is a place of danger and mystery. And as Iggy and Cal venture further into the trees, they hear whispers of a fading green magic, and scampering animals seem to be leading them to a secret deep at the heart of the wood. Could it be that the wood needs them just as much as they need it?

Are you ready to join the Treetoppers?

Then come on in - the Green is waiting!