In the present Age of Migration, the influx of immigrants from distant lands leads inevitably to the spatial and social restructuring of cities and regions, and is often accompanied by fears of and hostility towards the newcomers. Nevertheless, in Europe, North America and Japan this influx of immigrants is essential to economic growth. How can immigrants become accepted members of the society of their adopted country? How can strangers become neighbours? What alchemies of political and social imagination are required to achieve peaceful coexistence in the mongrel cities of the 21st century? W.