The Orb of Aldur or Cthrag Yaska was at first, a ordinary looking stone found in a creek by the god Aldur. As a consequence of handling the stone through several centuries, the surface became smooth, spherical and highly polished, even becoming like a gemstone. The Orb was said to be about the size of a child's heart. Later when the will of the Orb awakened it glowed blue (possibly to reflect the color of the god Aldur.) Garion described the the orb had some kind of song. A new 'Orb' resulted in the combined Orb of Aldur and the Sardion, of which Garion is its guardian.