Flying Polyps is a name frequently given to an unnamed alien race that inhabited the primordial Earth before being imprisoned by the Great Race of Yith. They may be the inhabitants of the mysterious city in Fallout (and perhaps that in Alchera) and might possibly be the source of the spiral wind that carries off Camilla and Cassilda to the Turning City in To The Tower, Childe Rowland, although that remains largely conjecture.