Not only does the emperor have a grand floating palace that makes its way of the skies of his empire at a leisurely pace, he also has a small navy of sky barges. Made of deep polished granite, broad with flat bottomed hulls, these sky barges ferry supplies to the palace as well as tribute from the High Born families and other parts of the empire. They come in a variety of sizes, smaller barges for ferrying important passengers to Songborne and other diplomatic tasks, much larger barges ferry great mounds of cargo. In times of war they are used to support the armies of the emperor. They are all piloted by the Silent Monks of Songborn who also keep the palace aloft and are otherwise almost never seen outside of the deep catacombs beneath the palace in which they live and where they are instructed on the arts of the secret silent chant. The barges are mored in their harbour in Songborne.
