In book two in the Gaslight Series, Black Absinthe: The Hidden Engine continues Joseph's story as he becomes The Master, the leader of Gaslight Island. With the island under constant threat from its former owners, The Ruthless Marmaladov Gang, Joseph rallies Gaslight's citizens to defend their home and bring the island back to its former glory as the best immersive stage on Earth. There are darker forces brewing, however. Joseph must turn to a secret society, called the Ambassadors, with their kit of magic elixers to defend against an even darker enemy than the Russian Mob. A sorcerer called "The Stranger" that is hell bent on destroying time to shape it in his own image. To counter The Stranger, Joseph will need to steep himself in the magic of the Ambassadors and call for the assistance from unexpected allies.