Kit Livingstone has been bequeathed by his great grandfather, Cosimo, an apparently impossible task: to piece together a 17th-century map whose fragments are scattered not just throughout this universe but other universes too. One piece of the skin map has been found. Now the race to unravel the future of the future turns deadly. Across time and space, through manifest and hidden worlds, those who know how to use ley lines to travel through astral planes have left their own world behind in this, the second quest: to unlock the mystery of The Bone House.