‘I’ll tell you something else too … We saw ’em in huge herds. Hundreds of the fellas all together in one place. Incredible sight, so it was.’ He winked at the boy. ‘Not small groups like your teacher just said.’

‘Wow,’ the boy gasped.

‘And, like I said, they were brown, like dust, you see, because there wasn’t such a thing as grass back then. They were brown as camouflage against the dirt, not green against grass. See what I mean?’

The boy nodded. ‘Should I put that down on my activity sheet, mister? Brown?’

Liam glanced down at the boy’s clipboard and saw a pop quiz. One of the questions was about the supposed colour of their hides.

He nodded. ‘Sure … put down brown.’

The boy’s forehead furrowed with a difficult dilemma. ‘But … er … I might not get a tick for that.’

Liam shrugged. ‘Aye … maybe so, but at least you’d be right, eh?’

He felt a hand on his shoulder and looked up to see Becks standing over them, her hair tied back in a tidy ponytail and wearing a plain dark woolly jumper that covered the still very visible scar tissue up her left arm.

‘Liam, you are aware Maddy would not approve of this,’ she cautioned.

‘Ahh … and you see this girl?’ whispered Liam to the boy. The boy looked warily up at her stern expression. ‘She saw these dinosaurs too … smacked one of ’em right on the nose, so she did. Actually started a stampede.’

‘This person does not have security clearance to know about our operations,’ Becks uttered firmly. ‘I recommend that you stop.’

Liam smiled. ‘Right, yes … of course.’ He glanced at the boy’s clipboard. ‘Brown, OK?’ He flicked him a conspiratorial wink and stood up. ‘What’s up, Becks?’

‘It is time now,’ she replied.

‘Uh?’

She nodded at a large digital clock above the entrance. It was a couple of minutes to eleven. ‘Time for us to drink coffee.’