Underground Waterway.

This is the area under the school. It appears to be where the school get's it's water from. The underground tunnels all lead to a central room. The water is separated in this central room. The river flows from the northern passage, the entrance is somewhere in the Courtyard. The water then splits to the east, south and west.

In the central room, a small room sits off to the side. Built as if to be a shelter in case chaos erupted. There are 16 sets of beds, small kitchen area and a few couches with a average sized TV. A little ways away, there is a larger block area for sparring. The the central room is lit up by an unusual number of blue crystals, they seem to have a recycling and cleaning effect on the water.