Nothing ruins Mardi Gras season like finding bodies carved with ancient power-draining symbols and decorated with creepy-ass carnival masks. For the Six Twisted Sisters, New Orleans' most notorious magical troubleshooters, this is just the start of their problems. Someone's hunting both supernatural and mundane victims, using twisted versions of their family's own grimoires, and building up to a demon-summoning ritual that'll make the city's bloodiest carnival in 1873 look like a kiddie parade. With a swanky supernatural masquerade ball on the horizon, bodies dropping at historic locations around the city, and their protective wards going haywire across the French Quarter, the sisters are hip-deep in magical chaos. Add in a secret society of supernatural elites, mysterious artifacts surfacing at underground auctions, and a forgotten ritual from the 1920s threatening to rip open the veil between worlds, and they've got themselves a party. The Six Twisted Sisters have kicked supernatural ass across the Big Easy before, but this time they're facing an enemy who knows their tricks—and is using their own family magic against them. Good thing these witches have enough combined power to make ancient vampires nervous, supernatural hotties watching their backs, and a caffeine addiction that would make a crack addict look tame. In a city where magic runs darker than chicory coffee, they'll need it all to stop this killer from turning their masquerade into the deadliest supernatural showdown New Orleans has ever seen.