Gwen was looking over the edge of the roof at the mass of black-eyed people gathered at the foot of the building, like ants. She thought for a moment of Idris Hopper, trapped in that house a few miles away, raging against all this. For all she knew, Rhys could be out there too. And all their friends, family… anyone, everyone.

Ianto joined her.

‘I really, really hate heights, me,’ Gwen said.

‘You should go on a date with him,’ Ianto said, jerking a thumb in Jack’s direction. ‘To him, up on a place like this, that’s a great night out. But when I suggested a rollercoaster once, oh no, that was a death-trap apparently.’