This is one of the earlier ideas of what a station in the Darkness might be like. The two tall towers would harness ambient energy, and that would keep the crystals charged, thus maintaining the fort aloft.

This idea of a blimp type air ships was the original ship for Captain Moirrey Eian Pherick. That was quickly abandoned due to the fact that it seamed out of place in his world.

The next choice was the tall cylinder type that was finally used in the book.