Sleepy hollow - Keith R.A. DeCandido

When Ichabod Crane, a soldier from the Colonial Army, is resurrected from his grave more than two centuries after he was killed in battle, he partners with Lieutenant Abbie Mills of the Sleepy Hollow Police Department to fight the evil forces that have taken hold of the town.

On a cold day in January, Ichabod visits Patriots Park for a moment of peace. Instead, he receives a disturbing vision from his wife, Katrina, in which she delivers a cryptic but urgent message: he must retrieve the Congressional Cross that he was awarded by the Second Continental Congress for bravery in action. There's just one problem: Ichabod was killed before he ever received the medal, and he is unsure where it might be.

Together, Ichabod and Abbie set out to uncover the mystery of the cross--and its connection to George Washington and his secret war against the demon hordes. But they soon learn that a coven of witches is also seeking the cross in order to resurrect their leader, Serilda, who was burned at the stake during the Revolutionary War. Now they must locate the cross before the coven can bring back Serilda to exact her fatal revenge on Sleepy Hollow.