The power of the crowd was such that Inteachán found it hard not to join in the singing.

She looked at Mac and he shook his head.

‘Someone has to not,’ he said. ‘We came only to observe and hopefully record.’

The family turned to look at Mac and he stopped talking. It just seemed easier.

Inteachán looked back towards the middle of the fort and gasped. Hundreds of old televisions had now been arranged in an enormous pile.

The kind that only showed programmes in black and white and don’t work anymore.