Ghost Story by Jim Butcher

Harry Dresden is dead. But that doesn’t mean his fight is over.

Trapped between the world of the living and the dead, Chicago’s only professional wizard must uncover the truth behind his own murder. To protect those he left behind, Harry must battle dark forces without his powers, without his body — and without time.

As enemies close in and secrets unravel, Harry faces his most impossible task yet: saving the world as a ghost. Because sometimes, the only way to fight evil is from beyond the grave.