Athelstan crouched down to examine the thick, oiled hempen rope with its tarred, twisted strands, which Barak had used in his abortive escape. The rope was secured tightly to a great iron ring driven into the wall. The rope had been pulled back after Barak’s fatal use and simply tossed on to the floor. Athelstan picked it up, scrutinizing the heavy knots placed every twelve inches. He could detect nothing out of the ordinary. Such ropes were common in both the Tower and other castles in case of fire or if the stairway to St John’s Chapel somehow became blocked. He sifted the rope through his hands and tugged hard, but the rope was sound in itself and firmly secured. He opened the shutters and flinched at the strong gust of icy wind; nevertheless, he persisted. He took the rope and threaded it out; it was long enough to allow someone to safely descend then jump to the ground below, the well-placed heavy knots providing some sort of hold for foot and hand. Athelstan leaned over the sill and peered down.
‘What did happen to you, Barak?’ he whispered to the darkness. ‘Did you slip from the rope? Were you nervous? Why take the arbalest with you? Were you on the rope when someone pushed you?’ Athelstan recalled the horrid wound to the right side of the dead man’s face, the broken neck, the way the body had crumpled. ‘I don’t think you slipped.’ Athelstan again peered over the window ledge: it was a dizzying drop to the cobbles beneath. ‘Do you know what I think, Barak, God rest your soul? You didn’t fall from the rope, you fell from here. Or, even more logical – and this would explain your savage wounds – you were thrown from here.’
Athelstan pulled the rope back and clasped the heavy shutters close. He leaned his hands on them and tried to make sense of his own thoughts. Such an escape could be depicted as probable. Barak the assassin could have easily checked both rope and shutters earlier in the day. According to the evidence, Barak carried out those attacks, left the severed heads and, when everybody else was fleeing the chapel, he joined them. That would be feasible. The rest would only be too eager to escape the White Tower but Barak slipped into the crypt. He certainly reached this window. Such an escape, Athelstan reasoned, from the fastness of this Tower would not be the first. Years ago Athelstan, while studying at Blackfriars, had used the top of the White Tower with its four unique turrets as an observatory to study the stars. Athelstan smiled at the memories. He’d also learnt a great deal about the Tower’s history. How a number of prisoners, including a Welsh prince, Ranulf Flambard, Bishop of Durham, and Roger Mortimer of Wigmore had all escaped by rope from this great Norman keep. Indeed, hadn’t one of them, the Welsh prince, fallen to his death? And yet… Athelstan felt a deepening disquiet about the accepted story of Barak’s death. The evidence didn’t appear correct; there was a lack of logic to it. ‘Not only the details,’ Athelstan murmured to the darkness, ‘but the motivation. According to his comrades, there was no change in Barak in the hours or days before he committed these dreadful crimes.’ Athelstan rubbed his face. Would, he wondered, the Upright Men have entrusted those severed heads to Barak? Yet there was no evidence, apart from what was found on his corpse, of any link between him and the Upright Men. According to Thibault nothing incriminating was found among Barak’s personal belongings. Athelstan stood with his back to now-closed shutters. He peered through the gloom then walked across to the recess built into the far wall. The paving stones here were the same light colour as those of the chapel while, despite the dust and cobwebs, the walls had been recently whitewashed, probably as late as the previous spring. Athelstan took another cresset from its holder and went into the recess. He crouched down. Using the pools of light from both torches, he scrupulously examined both floor and wall inch by inch.
‘May the Lord be thanked,’ Athelstan prayed, ‘I have found it.’ He stretched out and touched the wall, certain those dark stains were small splashes of fresh blood on the plaster of the enclave. Athelstan put one of the torches down and sat with his back to the wall, rubbing the plaster with the back of his head. He turned so he was on his hands and knees. Barak, if he remembered correctly, was slightly taller than him. Athelstan scrutinized the wall and murmured a prayer of thanks. The small bloodstains were just above where the friar had rested the back of his head.
‘Athelstan, Athelstan! Brother Athelstan!’ The friar returned to the chapel, where Cranston, Lascelles and Rosselyn were waiting. The two soldiers were deeply intrigued by what Athelstan asked for but quickly agreed to help. First Rosselyn and then Lascelles acted as a would-be assassin.
‘I want you to go beneath the table, behind Hell’s mouth and,’ Athelstan pointed to the two stools each marking the place where Lettenhove and Oudernarde had fallen, ‘pretend to loose a bolt at the Fleming’s henchman and then at Master Oudernarde. However, you are to do it twice. The first time you must pretend to have one arbalest, the next that you have two and the second is already primed. Now,’ Athelstan insisted, ‘you must use the gaping jaws of Hell’s mouth as your vantage point. I suspect that, like