Sneak

Time Required: 4 seconds
Skill: None
Requires: You must be Hidden.

Your location becomes Uncertain. If you take any action while your location is Uncertain, then your location becomes Fixed either directly before or directly after the triggering action (your choice).

Having Hidden from the band of goblins, Kioni decides to move to a better vantage point. She Sneaks, her location becoming Uncertain. When she decides to make her attack, her location will become Fixed; she will likely choose to do this before making the attack, in order to ensure that she's in a position that best serves her needs.