Athelstan sensed a shift of mood in the group: no more fawning smiles or air of innocence. He studied their close-set faces: you may not be what I think you are, he thought. The friar now understood why the group had not been troubled as they quickly hid behind an air of surly aggressiveness.

'Brother, we travel here and there.'

'That wasn't my question.' Athelstan shifted on the log, picked up his chancery hag and placed it in his lap. 'I only seek information. It's good to do it on a sunny autumn afternoon. However, I can petition Sir John Cranston and continue my questioning at another time and in a place much less congenial.' 'There's no need to threaten.'

'I'm not threatening. I'm giving you my solemn promise. Horrendous murders have taken place. Justice must be done for Margot and Bartholomew.'

'We knew them.' One of the women spoke up, ignoring First Gospel's angry glance. 'They often came into Black Meadow and walked down towards the river, hand in hand, cheek to cheek.'

'They were pleasant people?' Athelstan asked. 'They must have stopped and talked to you?'

'Oh, they did.' First Gospel spoke up. 'Usually about the river but the clerk, Bartholomew, he was full of tales about the Tower: about its history and the gruesome deeds it had witnessed.'

'And?'

'He talked of Gundulf the Wizard.' First Gospel closed his eyes. 'That's right, the sorcerer who built the Tower for the Great Conqueror. He said that in or around the Tower…'

'Go on!' Athelstan insisted.

'Gundulf had buried a great treasure.'

Athelstan's heart quickened. 'And where was this treasure buried?'

First Gospel smiled slyly and tapped the side of his head.

'Many people think our wits wander, Brother, so they talk to us as if we were children.' 'What did he say?'

'Go on!' the woman urged. 'Tell him. It was an interesting tale.'