Deed

The old woman sat on the bench next to the pond. It was the perfect day for it - sunny, but not too sunny. She positioned her flask of coffee and her container of sandwiches on the bench next to her. She took the book from her bag and began reading.
Children played nearby, running and laughing.
She was so engrossed in her book that she didn't notice how quickly time was passing. She was struggling to read, fighting her eyes which wanted to close. It was starting to get dark. She looked at her watch and was shocked to see she'd been sitting there for nine hours.
The park took on a different atmosphere at night. The children were gone and had been replaced by cider drinkers and drug users, both recreational and professional.
She bundled everything into her bag and shuffled towards the exit.
"Hey, lady," a drunken voice slurred at her.
She ignored it.
"Hey!" It was shouted this time.
The owner of the voice was getting closer. She panicked and attempted to move faster. It was no good and the young man soon caught up to her. She felt a hand on her shoulder and feared the worst.
"Hey," the voice said.
She turned around and saw a man holding a bottle of spirit in one hand and a bookmark in the other.
"You dropped this," he said, handing her the bookmark.