Serena exhaled, stretching her arms as she closed the last file on her desk. It had been a long day, and though she loved her work, she was more than ready to head home.

She gathered her things, slipping her phone into her bag before grabbing the stack of files she needed to review later.

The office was quieter now, most of the employees had already left, leaving behind only a few staff still finishing up their tasks.

As she stepped into the hallway, the sound of her heels clicking against ...