Hazel and Portunia have discovered that the plan to steal magic, involving an alliance between the Fae and the humans, is bigger than they could have ever imagined – and every day more and more children are disappearing.

To save Goblyn Wood, Hazel must climb to the Howling Mountain and retrieve the fabled Fairy Axe. She will be tested again and again on her journey. Can she fulfill the prophecy of the slipskin before the magic of Goblyn Wood is gone forever?

The spectacular conclusion to this imaginative fantasy world by Waterstones prize-shortlisted author Anna Kemp.