So Rose had paid her money to enter the aquarium, and for a while she’d watched children feeding carp in the thermal pool. Even now she could remember feeling the shape of the item she carried in its plastic bag, and knowing she was making a fool of herself in the most dangerous way. But perhaps no one had noticed her nervousness, because people were too wrapped up in their own interests.

She thought about taking some more of her herbal tablets. But that would mean walking as far as the bathroom for another glass of water, and it wouldn’t make any difference anyway. Not now.

Her doctor knew about her anxiety and insomnia problems. She’d gone to him out of desperation, breaking her own rules and knowing it was a mistake. But he hadn’t been able to help her. For a start, he’d never understood why she wouldn’t continue taking the sleeping pills he gave her. Rose had felt quite sorry for him when she saw his perplexed frown, his fingers hovering over the keyboard to tap out an automatic prescription for Nitrazepam. In the end, she’d told him the pills gave her heartburn, and he’d accepted that as a reason.

Of course, he was a rural GP, and he hadn’t met anyone like Rose Shepherd before. He didn’t understand that she wasn’t just another neurotic, middle-aged woman. He couldn’t possibly have known that she was even more frightened of never waking up than of not being able to sleep.

Rose had always known she’d be killed. Well, it felt like always. She could barely remember a time before she’d known. She expected to meet her death because of the way she’d led her life. It was a question of when it would happen, and how. All she could hope for was that it would be sudden, and painless.

Two forty-five. The house was very quiet, wasn’t it? Even her bedside clock had a tick so faint that she had to listen hard to be sure it was working. There was an Edwardian longcase in the sitting room downstairs, but it would be another fifteen minutes before it was due to strike. Its chimes had counted away many of her nights.

In some ways, knowing her fate only made things worse. It meant that she lived every day in fear of a phone call, a knock on the door, the smashing of glass in the middle of the night. Every time she went out of the house, she expected not to return. Whenever she looked through the window, she was surprised not to see dark figures in the garden, watching her house. For a long time now, she’d considered it more difficult to live than to die.