The Tireless Mechanic
From The Fifth City Wiki
"Does he ever sleep? His eyes are dark-circled, but his hands are steady."
The Tireless Mechanic can't sleep. Really, he can't. He stole a secret from the dreams of the Stone Pigs, then he made a deal with the Fingerkings. As a consequence, if he sleeps, the Fingerkings will drag him into Parabola. He is intelligent enough to outsmart them; however, he just needs the right tools, like a draught of some sort of potion that keeps him awake.
