Reaper Girl - Reaper Girl Chronicles, #1

Grim Reaper Leliel made a mistake - she tried to reap the soul of a man who wasn't dead. Now she has to escort him through the Underworld in an effort to get it back before he turns incorporeal - a fate truly worse than death. But the real challenge is not falling for the young, handsome, funny guy who hates her for destroying his life. No pressure. Originally appeared in Under Her Protection: Stories of Women to the Rescue.