‘Right, have you got the messages?’ Kelly asked.

Kate nodded.

‘Let Dan and Emma have a look. Familiar?’ she asked them.

Dan and Emma flanked Kate on either side and stared at her phone. Sure enough, the images showed one of the pilots giving the thumbs-up beside an enormous bed, then the view from his window. It was of Ullswater. They judged it to be the same stretch as could be seen from the Laurie Fell estate.

‘That’s as good as a positive for me,’ Kelly said. ‘I want the housekeeper brought in under caution. I imagine the family will provide a lawyer, if they haven’t already.’ She referred to the Kennedy-Craigs. If the housekeeper was in their clutches, as she seemed to be, then it was expected that she’d be protected.

‘I took the liberty of tasking a constable to trawl through these social media accounts responsible for the footage,’ Rob said. It was a good move, and a standard one. Kelly nodded. She sipped her coffee.

‘Right, we have lots to work on. I want all social media posts from the weekend connected in any way to the Laurie Fell estate, collated and traced to real people. Let’s pick them up and get a picture of what was going on there, particularly on Sunday night. Meanwhile, I’ve got a telephone call with a station in Manchester who’ve managed to pick up our egg-thrower. Several protesters were arrested at the scene but released. However, the ones in the photos were recognised as usual suspects at protests like these. They seemed to pack up and go home pretty quickly, which I guess is standard behaviour for climate conferences – cause trouble and piss off – but we’ll get what we can anyway. The toxicology hasn’t yet come back from the bodies of the pilots, but it’s quite obvious they weren’t resting, like pilots should the night before their flight.’

‘Boss,’ Rob said.

They all looked at him. Emma had her bag slung over her shoulder, ready to run a marathon if needed, Dan two paces behind her, in a padded coat, replenishing their takeaway cups with coffee.

‘Look at this,’ he said, peering at his screen.