‘The Land Cruiser got to the shipyard not long after that,’ said Hessa. ‘Layla texted me as soon as she lost sight of the car, so it must have come straight there. It stayed at the shipyard for almost two hours. I was starting to worry that there was another way out. But finally, it came out again, zooming off down the highway back to Chittagong.’

They were both elated, thrilled at chasing the car across the busy city. Hessa threw herself into a chair.

‘I tracked the Land Cruiser a long way back here,’ Hessa went on. ‘One of the huge trucks on the highway had gone over on its side, so the traffic was total chaos.’

All along that road, scrap from the ships was sold off piecemeal. Boilers, life-jackets, odd lengths of tubing, it was piled high and sold cheap.

‘So it looks like the Land Cruiser came straight to the hotel from the shipyard,’ Casey concluded. ‘The car would have had no time to go anywhere else. Hessa, could you see if the baby was in the back, after it left the shipyard?’

‘No.’ Hessa was serious now. ‘Remember, the windows are tinted, so I couldn’t see into the car. But the baby must have been with them by then. They must have picked her up from the shipyard.’

‘It seems likely,’ Casey said. ‘Could the women possibly be on that site?’

‘There are lots of buildings on the little track leading down to the shipyard,’ said Hessa. ‘But they are just shacks for the workers.’

‘The way Shamshun described it, it can’t be a shack,’ said Casey.

She and Hessa had examined the shipyard online, zooming in and out. It was lush with greenery, this part of the coast, the little houses surrounded by trees, big pools of water here and there. The track off the main Bhatiari road led past some shacks and then down towards the entrance of the shipyard. At the entrance, the track forked. One branch meandered through the shipyard, towards the mudflats and past the big barns. The other track continued outside the perimeter fence, towards some more workers’ homes. The shipyard’s fence ran around a large area. Several acres, Casey estimated.

From space, they could see the narrow workers’ paths, out to the Tephi and the Beauvallet. To the left of the barns was the grey brick building Casey had seen from the fishing boat.

‘One of those buildings,’ Casey pointed. ‘There.’

As the others went out to find a restaurant, Casey drew a breath. Then she pushed the numbers on her phone.

‘Casey?’ The phone barely rang before Emily answered it.

‘We’ve got her, Emily,’ Casey said, and an almost animal noise came down the line. ‘She’s a lovely little girl.’

For a moment, Emily couldn’t speak.

‘Let me see her,’ Emily pleaded. ‘I need to . . .’