Then, the three of them talked in Old Greyson's office.
Luke gave him a box. "This is a little something for you."
Old Greyson raised his eyebrow. "Can I open it?"
Luke said with a smile, "Of course. There's a user manual inside, but I don't mind explaining it to you."
Old Greyson opened the box, only to see an item that looked like a phone. "A phone?"
Luke shook his head. "It looks like a phone, but it's actually a… voice converter. If you aim the antenna at a target within twenty meters, this machine will record what they're saying and display it as text on the screen for you to read. Of course, the voice recognition might not be very accurate."
Selina's eyes glowed as she listened. It was a handy tool for any detective.
With an indecipherable expression on his face, Old Greyson said a long time later, "Please pass on my thanks to Robert." He then put the phone-like voice converter into his drawer.