It is Autumn 1943 and there is acrimony between the Air Staffs of Britain and America. With the 8th Air Force suffering crippling losses, accusations are coming from Washington that the RAF is not giving the B17s adequate support. Because of their distinguished reputation in the States, 633 Squadron is chosen for a dangerous mission that will set American minds at rest. But if the mission is to have its desired effect, it must be seen by ground observers. Flying high, and far away from anti aircraft fire, is simply not an option... Depicting wartime squadron life with the authenticity for which the author has become famous, 633 Squadron: Operation Crucible is the third in the bestselling 633 Squadron series.