Tom half carries me into the lounge and lays me on the sofa. I struggle to sit up.

‘Jenna?’ Amanda perches next to me and presses the back of her hand against my forehead. ‘You’re burning up.’

‘I’ll ring for an ambulance,’ Tom says.

‘No.’ I push Amanda’s hand away. ‘Sophie’s in trouble.’

‘Sophie’s in Spain,’ Tom says steadily. ‘With Owen.’

‘No. She’s not.’ My tongue feels thick in my mouth and forming words is almost more than I can manage.

‘You’re not making sense, Jenna. You have a fever and I’m taking you to the hospital,’ says Tom.

‘Look in my bag,’ I say desperately, gesturing to the floor.

Tom unzips my bag and tips the contents out onto the coffee table. Amanda grabs the passport. When she opens it the colour drains from her cheeks.

‘It’s Sophie’s,’ she whispers through her fingers. ‘Jenna.’ Her voice is louder now. ‘Where is she? Where’s my baby girl?’

‘Why have you got Sophie’s passport? What’s going on, Jenna?’ Tom is staring at me as though he’s never seen me before.

I sift through words that spin around my fevered head, trying to formulate an explanation that won’t make me sound crazy, but I can’t.

‘There’s something called Cellular Memory, where…’

‘The recipient inherits the donor’s memories. I’ve heard of that. I spent hours researching transplants after Callie. I told you about it, Amanda, remember? The research that scientist was doing. What’s that got to do with Sophie?’

Tom crosses the room and wraps his arms around Amanda as though my words are arrows that will wound her.

‘I feel things. See things. Muddled images. Fragmented dreams. I think they are Callie’s memories. She’s been trying to tell me something but it all became so blurred, but now I know. Sophie is in danger. Nathan told me.’ I hold up my palm to stop their inevitable questions. I can’t answer them. ‘He was going to meet her tonight. We need to find her.’

Tom and Amanda fall silent as they try to process what I’m trying to explain. Will they trust me? I hope so. Callie’s desperation has seeped into every single cell in my body. Tom walks towards the front door and for a horrible moment I think he’s going to ask me to leave, but instead, he fetches his shoes from the doormat.

‘Where is she?’

‘I think—’

‘You think? If she’s here I need to know where. I’ll call Nathan if he was meeting her.’ He picks up the landline.

‘He won’t answer,’ I say and Tom hesitates. ‘I know how it sounds but you have to trust me.’ There’s a beat before he places the receiver back on the cradle.

‘I’ve had lots of dreams of Callie and Sophie,’ I say. ‘But all in the same place. It’s a place they both felt happy and safe and I think that’s where she is.’

‘Where?’ Amanda is wringing her hands together. She looks distraught.

‘The caravan park you used to go to. Owl Lodge you said it was called, Amanda?’

‘Newley-on-Sea? We used to go there when the girls were small. It shut down a couple of years ago.’

‘I’m sure that’s where she is.’

‘I’ll fetch my keys, and your shoes, Amanda.’ Tom thunders up the stairs, and I pull myself up and put my arm around Amanda’s shoulders, partly to hold myself up and partly to comfort her.

‘I thought she was in Spain. With Owen,’ Amanda says.

‘Perhaps we should call the police? If she’s in trouble?’ I say.

‘We don’t know she’s in trouble and we can hardly tell the police you’ve had a dream Sophie is at a caravan park that has been shut for years. They won’t take us seriously. We need to find her ourselves.’

‘We will,’ I say with far more confidence than I feel.

Amanda looks at me, a worried expression on her face. ‘You must see a doctor, Jenna. You look terrible.’

‘I’m OK,’ I lie. I must see this through.

‘I can’t be responsible for you too. I’ll phone an ambulance. You can’t take any chances with Callie’s heart.’

Before I can answer Tom bursts into the room, talking loudly on his mobile phone: ‘I know, I know. It sounds mad. But we have to at least look though. I’ll call you as soon as I know more.’

He puts his phone into his pocket and hands Amanda her shoes. ‘Just filling Joe in,’ he explains. ‘Let’s go then.’

I take a step but Amanda places a hand on my arm. ‘Tom, I don’t think Jenna should come, she’s sick.’

Tom glances at me. ‘You don’t have to come.’

‘I want to,’ I say firmly.

‘She wants to,’ echoes Tom. ‘Come on, no time to waste arguing about it. Sophie is our priority.’

* * *

In the back of Tom’s car, I press my hands against my chest. My heart beats out Sophie-Sophie-Sophie and I whisper to Callie that we’ll help her sister, but I don’t know how much longer I can hold on.

It’s just a cold.

Except it’s not, is it? All the lies I’ve told and, even now, I’m lying to myself.

My phone beeps. Nathan’s name illuminates the screen: ‘Where are you?’

‘Going to get Sophie’, I reply. ‘I’m sorry.’

I shudder when I think I could have killed him, and I wonder if I’ll ever be the same after this. If there’s to be an after this for me?

Housing estates are replaced by dark, country roads and the wheels on the car spin faster and faster. We hare through the village of Woodhaven. Icy fingers of fear reach out and squeeze me as I think about the journey Callie made through here six months ago and how it ended for her.

I’m growing weaker, and weaker.

The weather is foul. Rain torrents from the invisible night clouds and the windscreen wipers swish-swish-swish and it’s hypnotic.

I try and try but I just can’t keep my eyes open any more.