A small purple egg, almost buried in a jumble of all sorts of fabrics and materials, stirred. The first movement, breaking the previous stillness of the scene, was slight, but each subsequent one (and they occurred in quick succession, almost at regular intervals) grew in intensity, to the point where one of them shook the egg so hard that it tipped over onto its side. The fall, though potentially dangerous for such a delicate structure, turned out to have no major consequences – the nest, ...