It was a terrible few days. To this day she didn’t know how long it had lasted. She had it marked as three on her calendar, but it could have been one, or seven. She’d see what the real date was when she got out of here and find out how many days had gone missing.

If she got out of here.

Eventually the light had fizzed back on. The man appeared in the doorway minutes later.

Don’t do that again, he said. Or it will be twice as long.

She had tried again, though, and the memory of the punishment after that attempt still made her blood run cold. It had been worse than darkness, even darkness for twice as long.

Much worse.

She picked up the jeans and the needle and thread and began to sew the button back on. The plastic hoop at the back of the button had cracked and was going to fall off again soon, so she wrapped the cotton thread tightly around the plastic to secure it before sewing the button into place. She felt jaded, foggy, like she’d barely slept. It was the lingering effect of the disappointment the night before. For a moment she’d been sure the man was going to agree to let them leave – she’d seen it in his face, a tiredness at having to keep them there and a desire to embrace her suggestion and let them go – but then he had said no.

They have my DNA.

Which meant what, exactly? What little she knew about DNA had come from watching television shows in which cops used it to catch criminals and daytime chat-show hosts used it to prove paternity. Was that what he was afraid of? That the cops would take Max’s DNA and match it to his? But how would they even know?

There was only one way. They had his, in some database, and that meant he had done something – or been a suspect for something – like this before.

Her hands stopped moving, the needle part way through the waistband of the jeans. Was she not the first to be down here? She looked around the room, picturing another mother sitting on the bed, her child playing on the floor. It was hard to imagine someone else in here. She associated it so much with her and Seb and Leo and Max.

And he’d said, years ago, when she was first here, that he’d built it for her.

So maybe he had done something else, committed some other crime, and, when he was caught, had decided to make sure he could never be caught again.

By building this hidden room that no one could ever find.

And keeping her here forever. If she hadn’t known it before she did now – this was forever.

She had to do something, and soon. She looked at Max, her son who would be three in five days.