After meeting Ma Fishface in The Sinking City 2, she will give you the second Leyden Jar and will help you with getting the third one if you bring her a special device: Antikythera. This is a time travel machine that will help you go back in time and bring back the third Leyden Jar. Faye will initiate the time travel, and you will get to know more about the origins of the Leyden Jar and also about the backstory of Ma Fishface.
