Absinthe, an elixir made of alcohol and herbs, is a booming business. Yet it is still an underground culture, associated with mystery, romance, and bohemian lifestyles, in keeping with its popularity among the writers, artists, and other ne'er-do-wells. First produced in eighteenth century, the spirit, known as "the Green Fairy," was banned worldwide by 1914 before the bans were gradually overturned beginning in 2005, the year Switzerland relegalized absinthe.

Enter a bon vivant who inveigles his way into the private Facebook groups where the modern absinthe demimonde converges and charms some of the best minds (and palates) in the beverage world into thinking that he was selling them precious vintage pre-ban bottles. How did he get away with it?

The Absinthe Forger pieces together the forger's subterfuge and motivation. It shows how absinthe can transform a person—and even connect drinkers with a deeper, often hidden sense of self. Rail digs deep into the modern absinthe underground, whose members are still frantic to find the last remaining bottles of pre-ban absinthe, and he visits modern producers of the spirit, who have, in a generation, changed in status from daring criminal bootleggers to sought-after celebrities. The Absinthe Forger is a bizarre crime drama that will make you never look at wormwood in the same way again.