Book of Maps (artifact)
This tome proudly bears the mark of the Aversarinas Enosi Cartegraftekon, or the Aversarian Cartographer's Union. Aversarian scholars are the only ones in the world (besides possibly the Adabyssians) who are known to have shown an interest in crafting truly accurate maps of the world, using a mix of science and magic to find the exact shape and size of every land mass.