 Meanwhile, the construction workers who work under Lindstay's father (an engineer who aims to build a new, massive aqueduct for the residents of New York) end up finding traces of some mysterious people dwelling underside the city, and the Topsiders become aware of the Downsiders and want to catch them.As Talon heads for the Downside, the Downsiders meet at the city hall ("Hall of Action") and plan to take action against the Topsiders.Railborn Skinner, Talon's former friend and the person who ratted Talon out, suggests knocking out the Topside's utilities to punish them for their "ungratefulness."