I'm putting in an update now...the underwater drones look like a school of sharks that is patrolling under the surface monitoring for ships - human or otherwise. So to Aya and Ari it would look like a shark swimming near by. It isn't under orders to do anything but monitor activity - location, weapon status, etc. Not close enough to pick up the conversation. I would image Aya could figure out it was fake if she scanned it since its made out of nano materials. Ishi is trying this vs active sonar because its less obtrusive. She also wants to make contact with Aya at some point, so if Aya starts investigating the bread crumbs will lead to Ishi...<br/><br/>