Thomas Chaloner has forged a living as spy to the Lord Chancellor, the Earl of Clarendon, since the early days of the Restoration. Now, in February 1664, he is aware of an undercurrent of restlessness on the streets of London. The coffee houses are thick with rumours. There is anger at the new laws governing church attendance and a deepening contempt for the loucheness of the court. And there is murder. The infamous church-smasher Dick Culmer...