'Utterly unique . . . A masterpiece' The Daily Mail 'Stunning . . . Brilliantly original' The
Guardian London is built from concrete steel and the creative urge. Old technology gives way
to the new. Progress is inevitable - but is it more fragile than its inhabitants realize? A
strange anomaly is uncovered in the new top-secret Crossrail extension being built under
Buckingham Palace. It is an archaeological puzzle one that may transform our understanding of
history - and the origins of London itself. And if our modern world falls we may have to turn
to the technology of the past in order to save our future.