When Honey was four and her brother Rumi was a tiny baby, her family loaded up their converted ice-cream-van-camper and drove away from all they knew, as an illness swept the sad wide world. High in the mountains, they crossed a bridge to follow a mysterious herd of enchanted horses into a sheltered valley. The bridge and the track disappeared behind them - and now they are trapped in paradise. In the valley of horses, Honey's family becomes self-sufficient, fishing, growing vegetables and using solar power. But no messages from the outside world are ever received. When her father falls desperately ill, Honey is sure there must still be people in the big wide world who can help. She is determined to draw on her resourcefulness, self-belief and courage, but will this be enough to find a way out of the valley?