Her own iPhone. The one that had gone missing.

She put it in her pocket to nestle alongside the money she had found in the bag, then stood up straight, rubbing at her breastbone as a strange ache began to spread and grow there.

Putting one foot in front of the other, she walked on.

‘Just here is fine.’ Paula leaned forward as the taxi rounded the corner of the harbour.

They were at the bow end of the ship, and the lights of the Ruby Spirit blazed out across the water.

She shoved some notes at the taxi driver and hauled herself out of the car.

She should find someone in authority, or ring the international number for the police. Or summon the captain. Tell him that one of his passengers had tried to kill her. She had to find Tommy, because Anna was after him now.

But not to kill him, though.

She nodded to herself. No, Tommy was safe for now.

The tips of her fingers itched. She rubbed them up and down the zip of the coat she wore, deep in thought.

Crowds of passengers stood in huddles on the deck at the top of the walkway. They parted for her, nobody looking at her, none of them realising that the person the ship was waiting for was in their midst.

In her pocket, she fingered the keys she had found in the forest.

Evidence.

‘Yes.’ She spoke the word quietly to herself, a confirmation that she knew what she had to do.

If she went to someone now and told them what had happened, Anna would be brought in and questioned. But she was clever, and everyone was charmed by her, and nobody would believe what she had done. Not even Paula’s own husband.

Especially him.

Her lips curled into a scowl at the thought.

She pulled her hood up as she entered the corridor at the end of the ship and walked quickly along the hallway to the spiral stairs that would take her up to her suite. Her blood pumped freely now, and she patted at her face. She could feel both her fingers and her cheeks now, and she supposed the risk of hypothermia had passed.

On the floor where the first-class suites were, all was quiet. She walked past her own door, carried on until she came to the corner. She faced the door of the Arctic Suite and pulled the keys out of her pocket. Pushed one into the lock. A green light shone, a subtle click.

She put the keys away and slipped inside Anna’s room.

A weight at Anna’s back, crashing into her. Catching her foot on the step, she staggered out onto the balcony.