Bubble 543

Bubble 543 is a self-contained desert world inside a giant bowl atop the Necropolis of Anser, covered by a high forcefield dome. The sandy terrain with dunes and scattered metallic wrecks stretches between Hump Town, built against the wall in semi-circular rings under enormous blue-and-white striped awnings, and a mirror town opposite. A massive jagged floating island castle, held by five colossal balloons and covered in mismatched structures, weapons, dangling chains and rusting flying machines, drifts overhead like a Mad Max aircraft carrier. The dual artificial suns create cycles of intense heat, sandstorms and brief nights in this contained, harsh post-apocalyptic bubble.

Bubble 543 first appears in Book 4 as a self-contained desert world inside a giant bowl atop the Necropolis of Anser, covered by a high forcefield dome. The sandy terrain with dunes and scattered metallic wrecks stretches between Hump Town, built against the wall in semi-circular rings under enormous blue-and-white striped awnings, and a mirror town opposite. A massive jagged floating island castle, held by five colossal balloons and covered in mismatched structures, weapons, dangling chains and rusting flying machines, drifts overhead like a Mad Max aircraft carrier. The dual artificial suns create cycles of intense heat, sandstorms and brief nights in this contained, harsh post-apocalyptic bubble.