A Station Eight Fan Web Site
You said there is no naturally occurring iron on Avalon. Wouldn't this create a health problem for the humans living there? I don't know about the gargoyles, but Princess Katherine, Tom and the Magus have blood that requires iron to transport oxygen. Normally this iron comes from the food we eat; but if there's no iron on Avalon, then no plants that grow there would have iron in them and no animals that live there (and eat the iron-free plants) would contain iron. So you would think that the humans who have lived there for decades would be anemic, or sick, or something. How did they get around this problem? Sorcery? Or did they have to bring their food in from outside of Avalon? Did Tom have to occasionally hop on a skiff and go grocery shopping?
O.K. Wow. You caught me. I was thinking of iron in terms of big deposits of metal. Not in terms of the basic iron molecule.