Curse in the Quarter by Heidi McLaughlin

A cursed man. A haunted city. A love that defies lifetimes.

When fallen angel Bastien Durand walks the rain-soaked streets of New Orleans, he carries more than just the weight of his past—he carries the memory of a love that has haunted him for over a century. Working as a supernatural investigator in the French Quarter, he’s learned to live with ghosts, both literal and otherwise.
But when ancient magic begins stirring in the shadows and familiar melodies drift through the night air, Bastien realizes his greatest torment may also be his salvation. A brilliant librarian with eyes he’s never forgotten holds the key to secrets that span lifetimes, though she has no memory of the souls she’s carried before.
As supernatural factions clash and the veil between worlds grows thin, Bastien must navigate treacherous magic, old enemies, and the devastating possibility that some curses are stronger than death itself. In a city where the past never truly dies, he’ll discover that love—and loss—can echo across centuries.
But awakening the truth may cost him everything he’s fought to protect.

A moody, slow-burn paranormal mystery set in a New Orleans where demons, witches, and fae itself walk unseen among the living.

Curse in the Quarter is the first book in the Bourbon Street Shadows series.