The Lanehart Chronicles

For seven centuries, one English family has quietly protected history from a demon that never attacks head-on. Abaddon doesn't start wars. It whispers and waits for a crack.

Beneath Lanehart Manor, behind an iron door, sits the Iron Key. Each generation it chooses one heir and opens the way into the ether, the vast space between every moment that has ever happened. Eugene, the most gifted scholar the family has ever produced, was never chosen. His younger brother Owen was. When Eugene tries to take what was denied him, the darkness takes him instead.

Now Owen must learn from the ancestors who came before him. One walked into a Mongol war camp. Another walked through the Black Death. A third hid in plain sight inside the Spanish Inquisition. Owen needs all of it to bring his brother home before history comes apart.