The Black Locomotive

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.