A Fragment is any floating stone too small to be a proper skyland, and is usually private property. FoAAS covers how to claim a fragment, clear it of monsters, plant a settlement, and modify it so that it is better suited to the use of the Association which owns it. You can dam surface and subterranean rivers, redistribute water through irrigation canals, honeycomb it with passages and living space, create hunting reserves, use cisterns to collect rainwater, place sails to steer it through the air, place shrines and temples, build shipyards, villages, towns and cities, and much, much more!