Who knows where the time goes? There never seems to be enough time in Kinvara, or anywhere else in Ireland for that matter. When J.J.'s mother says time's what she really wants for her birthday, J.J. decides to find her some. He's set himself up for an impossible task . . . until a neighbor reveals a secret. There's a place where time stands still—at least, it's supposed to. J.J. can make the journey there, but he'll have to vanish from his own life to do so. Can J.J. find the leak between the two worlds? Will a shocking rumor about his family's past come back to haunt him? And what does it all have to do with the village's new policeman . . . ?

Traveling to the land of eternal youth was the only way J.J. Liddy could stop time from leaking from his world to T'ir na n'Og. But fifteen years after returning from the land of the faeries, J.J. wonders if that long-ago visit is responsible for the strange things now happening to those around him. Why does his daughter Jenny roam barefoot through the wilds, when she should be in school? When did the mysterious white goat begin to patrol the hillside? What is the secret project that J.J.'s son Donal is attempting? And who is the ghost guarding the stone beacon at the top of the mountain—and why has Jenny befriended him? Finding answers to these questions will take J.J. and his family on the most important and dangerous journey of their lives. If they fail, it will undo all the good that J.J. accomplished fifteen years ago. But if they succeed, they will defeat the forces that are gathering to destroy all of mankind, and finally secure the future of the last of the high kings.

It is the latter part of the 21st century, and dramatic climate change has made life in Ireland almost impossible. Meanwhile, Tir na n'Og is faced with a refugee problem, and the king of the fairies is not happy about it and when it is revealed that the warlord who is behind the problem is a member of the Liddy family, JJ is sent to sort him out...Following on from The New Policeman and The Last of the High Kings, The White Horse Trick travels from the now to far distant futures: from world's end to world's beginning...