Sudden Backtrack by Kim Harrison

#1 New York Times bestselling author Kim Harrison returns to the ever-after one last time in this never-before-published short story!
The origins of the elf and demon war have been shrouded - until now. Told from a demon's point of view, join Al as he helps Newt spin the curse that caused the elven downfall... and perhaps holds the beginnings of their own reclamations.