His words created a wall of fear around her.

Something had happened that night.

She opened the door again.

‘But I didn’t see Melissa at the party,’ she said coolly. Her voice belied her feelings.

‘You must’ve.’ His voice was almost a whisper. Worry, or concern – or maybe disbelief – etched itself on Oliver’s face.

‘I – I don’t remember. I’d had so much to drink. The evening is pretty much one big blur.’ Louisa regretted her words instantly. If she couldn’t remember anything, she couldn’t tell the police anything. But at the same time, it meant she couldn’t confidently deny seeing Melissa, or knowing anything about her disappearance either.

Louisa’s stomach twisted as she suddenly questioned whether Oliver could be lying. He did say Melissa had gone off for days at a time before – it was possible he knew this was just one of those times but was making it out to be more purely to make Louisa feel sorry for him.

She should call his bluff.

‘Wait there, then. I’ll get Noah’s car seat.’

If it was a bluff, it was a convincing one, and Oliver had now taken it to the next level.

Louisa waited on a plastic chair in the reception of Newton police station, Noah in his car seat next to her. Oliver had been in there for over an hour, and Louisa’s bum was now numb, her patience wearing thin. It crossed her mind that if Melissa really had gone missing, then some woman with a baby accompanying the missing person’s husband to the police station might look a bit off. Particularly if they discovered she was Oliver’s ex-girlfriend whose party he’d just so happened to be at when his wife was last seen.

Finally, a door opened along the left-hand corridor and Oliver sloped out, his head hung low. The impossibly tall man, who’d introduced himself as Detective Sergeant Mack, then called her name. She picked up Noah’s seat and made her way to the room Oliver had just vacated. As she passed him, Oliver placed a hand on her arm, giving it a squeeze. He looked terrible – his usually tanned skin now looking pale and waxy.