Magnum Opus

One of three ships comprising the base of the All is One, resembling that of a steampunk flying fortress. It is the largest and main vessel; its sister ships are the Chrysopoeia (the School of Allchemy) and the Splendor Solis (the School of Sourcery). Unlike the other two ships, the Magnum Opus never leaves its orbit of the Firmament. When all ships are combined, it is referred to as the Rebis.