The pipeworks are a system of pipes under Ember that takes water from the river to the city's dwellings. The Pipeworks play an important role in the escape from Ember, as boats and candles were stored there. The Pipeworks is a risky place, due to the river's fast current and the fact that the stairs down to the Pipeworks possess no safety features for the descent. the pipeworks are really dangerous.
Mayor Cole was hoarding supplies from the storerooms in Tunnel 351 of the Pipeworks, with the help of a young man named Looper.,