The prehistoric sites of Britain and Ireland are places of wonder and wondering. Who made these structures? What did they mean to them? And what do they mean to us now?

Bestselling author Peter Ross journeys from midwinter at Stonehenge to midsummer at Sycamore Gap. Along the way he encounters bog bodies in Dublin, a wooden goddess in Edinburgh and a chalk giant in Dorset. He asks what it is like to live within the great stone circle at Avebury, what rituals occurred in an Anglesey tomb and what draws volunteers to care for the Uffington White Horse.

These objects and structures speak of the long human story. They offer the comfort of recognition and the pleasure of mystery. There is something about ancient places that fills a hollow in our souls.

Upon A White Horse is a celebration of landscape and people - and all that is beautiful, strange and old.