From the publisher:
The children's debut from Costa Award-shortlisted nature writer, Melissa Harrison
Three tiny, ancient beings – Moss, Burnet and Cumulus, once revered as Guardians and caretakers of the Wild World – wake from winter hibernation in their beloved ash tree home. But when it is destroyed, they set off on an adventure to find more of their kind, a journey which takes them first into the deep countryside and then the heart of a city. Helped along the way by birds and animals, the trio search for a way to survive and thrive in a precious yet disappearing world ...
A tale of the rich, wild world and all its wonder, By Ash, Oak and Thorn couldn’t be more relevant to the environmental concerns of today, brought to life by three tiny, funny, eternal beings – the Hidden Folk.