Are you one of the three people who bought their adventures

?
I'm not aware of any Althios map. The four adventures that I have (A Green Place to Die, The Succubus Bride, The Plague of Nyrathoth, A Mage's Tale) don't contain any complete map. The maps look more like pieces that can be introduced into every generic campaign setting and are nothing to talk home about, anyway. Only "A Mage's Tale" makes any effort of giving more setting background, but also limited to one country. I don't know the other two or three publications, though.