spies/detectives would be something pretty cool, the idea would be to have some place in the town where it would be possible to hire spies/detectives to find out the status of another player, but it would only be possible within certain levels, for example 5 levels before and 5 levels after the player himself, it wouldn't be guaranteed either, depending on the price paid and the duration chosen, there would be different chances of success and of course a small margin of error to make everything more interesting.