Languishing in a recovery unit on St. Charles Avenue in New Orleans, Dave Robicheaux is fighting an enemy more insidious than the one who put a bullet in his back a month earlier in a shootout on Bayou Teche. The morphine meant to dull his pain is steadily gnawing away at his resolve, playing tricks on his mind, and luring him back into the addict mentality that once threatened to destroy his life and family. With the soporific Indian summer air wafting...