While the intolerable weight of the War had been removed from the tottering walls of Britain and redistributed to the Pacific, to Russia and to Africa, Barr’s clandestine operations were as fraught as ever. He would have said more so. The U Boat, most now believed, had been defeated in the rout that the Germans were calling ‘Black May’. He seemed to be the only one facing up to the unwelcome truth. New and revolutionary submarine designs threatened the expanding and fragile web of Allied supply lines. Supply lines which were carrying the vulnerable reinforcements to theatres of war that lay across a vast and difficult to patrol Atlantic. If this modernisation of the U Boat Arm was allowed to continue it would mean a total rethink on the tactics used to combat his old enemy. If Doenitz was to get the supplies of fuel, steel and men he demanded and therefore was able to build his new model U Boat Arm, it would overwhelm the Allied convoys in a matter of months and thereafter the oceans of the World. The Allies slow and outdated escorts would be deployed against U Boats able to spend longer periods under water and that were faster than surface ships. The prognosis was a return to the bad old days; to a Britain short of materials, facing starvation with the prospect of a disastrous capitulation or total destruction under the jackbooted heel of the Nazis. From captured papers Barr, at least, can visualise the new force that could be arrayed against them and the possible consequences if they were allowed to prevail. All he needed to do was persuade a sceptical and celebratory hierarchy, convinced that the war is all but over, that it wasn’t. He needed evidence, but that lay where few would dare to go, few except Barr’s own elite force. After a daring raid, by 30 Assault Unit, the group do get their hands on vital documents, but he finds the news is even worse than he had at first thought. The Germans not only had a new faster U Boat, they also had jet propelled planes in the pipeline and all but invincible tanks. He realises the grim truth that the research and manufacture of these super weapons must be delayed by any and every means available; even if it means the loss of ‘Orca’ itself, it must be done. Failure would mean tens of thousands of lives lost when eventually the Allies land in Europe. It means that Orca must venture into the Grey Wolves lair a second time for it is there that the biggest of prizes beckons.