A Map of Days - Ransom Riggs, Dutton

The first three novels in the series introduced Jacob Portman and the world of the peculiars--and saw that world threatened by, and spared from, destruction by a hostile splinter faction and their monstrous servants. Now, in a thrilling new story arc, Jacob's adventure continues as Ransom Riggs reveals even more secrets of the peculiar world, set against the rich landscapes of American history.