'The pre-eminent historian of the secret world . . . His books have set the gold standard for accurate historical reporting, but read like heart-pounding thrillers' Mick Herron

From the author of Sunday Times #1 bestsellers COLDITZ, SAS: ROGUE HEROES and THE SPY AND THE TRAITOR . . .

On April 30, 1980, six heavily armed gunmen burst into the Iranian embassy on Princes Gate, overlooking Hyde Park in London. There they took 26 hostages, including embassy staff, visitors, and three British citizens.

A tense six-day siege ensued as millions gathered around screens across the country to witness the longest news flash in British television history, in which police negotiators