Harlequin is the first novel in The Grail Quest series by an English author who  is best known for his novels about what Napoleonic Wars rifleman?
Harlequin (novel) Harlequin (in US "The Archer's Tale") is the first novel in The Grail Quest series by Bernard Cornwell. It begins a series of stories set in the middle of the fourteenth century, an age when the four horsemen of the apocalypse seem to have been released over Europe.
Andy Hayman Andrew Christopher "Andy" Hayman, CBE, QPM (born 1959) is a retired British police officer and author of "The Terrorist Hunters". Hayman held the rank of Chief Constable of Norfolk Constabulary and Assistant Commissioner for Specialist Operations at London's Metropolitan Police, the highest-ranking officer responsible for counter-terrorism in the United Kingdom. Hayman was directly responsible for the investigation into the 7 July 2005 London bombings. He has also spoken for the Association of Chief Police Officers, first on drugs policy, and later on counter-terrorism.