The Pump

An enormous tower at the centre of Soren's Fist, responsible for filling the two canals that cross the city. When the forest to the north was destroyed and became the desert known as The Great Sand Sea, Soren negotiated with the Duergar below the city to design and build a machine capable of providing water to his people. The Pump straddles the point where the canals cross and the Duergar-made machinery in the tower extends down deep into the Underdark, accessible by the spiralling staircase hidden in one of the four legs holding up the tower. At the bottom, the exit is guarded by the Duergar who maintain a small settlement nearby to ensure that Soren's people honour their word never to disturb them without cause. Likewise, as the sole source of water to the city, the Pump itself is heavily guarded by the City Guard at all times.

The staircase and the leg it was housed in were recently destroyed in Rike's invasion, and the Pump no longer seems to be filling the canals.