Locksmith
The only thing she could do to open the safe was to call a locksmith specializing in such things. If anyone could do it, he could. However, it was late when she called, so the professional said it had to wait until the next day.
Old Safe
He arrived the next day, and he gaped when he saw her safe. In fact, he told Maggie it had to be at least 70 years old. She wondered why Peter had kept his secrets from her for that many years, but she’d soon have answers.