His breakthrough came with Ashes on the Bayou (1989), a gothic tale set in Louisiana that earned him international recognition. Later works include The Cartographer's Daughter (1995), Lights Across the Water (2002), and The Silent Orchard (2010), each praised for their psychological depth and evocative landscapes. His short story collections, Night Ferry (1998) and Other Shores (2016), further cemented his reputation as a master of quiet, melancholic fiction.
Leroix has been nominated for numerous literary awards, and his work has been translated into more than a dozen languages. He continues to write from his home in Nova Scotia, where he lives with his wife and two dogs.