While one can't use rumors as a basis for facts, they serve as a conduit to the past. Long ago, my people were powerful and learned. Xanmeers, the pyramids scattered throughout the marshes, were our creations, though details of their construction have long since passed from memory. We now see around us proud structures we once built, filled with our own Magicka. I theorize these keystones hold Argonian Magicka tied to our history and essential for our protection. Nowhere else in Tamriel have any keystones been found; they are connected with Argonian history and indeed, our future.