"If the spies are courteous enough to leave some data footprints on the computer. Doesn't seem overly likely, but I guess it could happen. Otherwise, we'd need some kind of electronic sensing device to detect said eavesdropping. We could always just pass notes or something."Ashley nods and behind Yaktal's back makes a little 'shooing away' gesture towards him to indicate she's done with him.
Once Yaktal has left the room, Ashley looks at Kirth and asks, "Is there any way you can tell if this room is currently being monitored or watched?"

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.