"Hello? I'm here at the location you provided," stated Xavier upon answering the call.
"Hahahahahaha! What a loser! You really cycled here in an hour from wherever you were, which I assume is somewhere near that rundown building that you contacted us from. To add to that, you look like you're just a kid, even if you have that hood and mask on."
The voice was hoarse and borderline robotic. This made it clear that whoever was talking was using some sort of voice modulator. However, from the method of speech and just out of a gut feeling, Xavier could tell that whoever was talking was a female. Or at least had a high-pitched and soft voice.
They also didn't seem mature or aged from the way they spoke. This surprised Xavier almost as much as the fact that they were able to find Zack's location and see him.