Akira felt uneasy. Instinct told her that something or someone was here, but she could just be paranoid. It was hard to tell in this line of work. This was definitely instinct. It felt as if someone was watching. It felt like it was coming from above them which was odd. Where could someone hide above them? Then she saw a grate that had to be part of a ventilation shaft. It couldn't hurt to check it out. She signaled to the other two that something might be up there.