A lead on the kill
As the day faded and the night drew near, Natasha who had been sleeping the whole day opened her eyes. It was time to get down to business, as much as she liked living, she had a job to do and a promise to keep. It didn't matter if she had to put herself in danger now, at the end of the day, she wouldn't die without completing her missions and fulfilling her promise. She could endure anything. She wanted those people gone and erased from the living.
She stayed indoors because some other creatures who were out seeking her as a bargaining chip wouldn't help her accomplish her mission. At the end of the day, she could always ask Reaper to let her die if she was unable to bear the pain anymore.