The Navigator — Eoin McNamee

Time is running out. ...

One day the world around Owen shifts ominously. Time flows backward, and his family and familiar places disappear. Time can be set right only when the Resisters vanquish their ancient enemies, the Harsh. Unless the Harsh are stopped, everything Owen knows will vanish as if it has never been. And Owen has a terrifying role to play in this battle.

With a cast of extraordinary characters, eccentric devices, amazing air and sea battles, and a race through the frozen North to the center of the earth, The Navigator is the first book in an epic adventure that will keep readers on the edge of their seats.