Smoke is rising from some of the long buildings too. But to get inside one of them, he would have to clamber up its heavy, slanting ladder and then worm through what looks like a rather small doorway. A child, standing inside one of those doorways with a stick, could prevent an intruder from coming in. Hanging outside some of the doorways are sacks, improvised from lengths of fabric (so at least they have textiles!) and filled with big round lumps: coconuts, possibly or some kind of preserved food set up to keep it away from the ants.