• Observed: You can see it. Target might also be concealed (DC 5 Flat).
• Hidden: You know where it is, but you can't see it. Can only take "Unobtrusive" actions. DC 11 to "guess the square"
• Undetected: You do neot know where it is. DC 11 to "guess"
• Unnoticed: You have no idea it is nearby

On the left are various arrows resulting from "Seek: Perception using a Sense vs Stealth DC".

From Unnoticed, needs at least Vague Sense. Success (S) goes to Undetected, critical success (CS) goes to Hidden.

From Undetected, needs at least Imprecise Sense. S goes to Hidden, CS goes to Observed.

From Hidden, needs at least Precise Sense. S goes to Observed.

On the right are various other arrows, with single actions labelled:

• Hide: Needs Cover (Not Lesser) or Concealment. Stealth (+cover bonus) vs Perception DC of each creature.
• Create a Diversion: Deception vs Perception DC of each creature. Only lasts till end of your turn. Once used, creature gets +4 against this for 1 min
• Strike: Resolve the strike, then become Observed.
• **Sneak: Needs to end in cover or concealment. Move half speed. Stealth check at end (+cover if in cover the whole move) vs Percep DC of each creature.

From Observed, make Hide/Create a Diversion. S leads to Hidden, Failure (F) leads back to Observed.

From Hidden or Undetected, make Sneak check. S leads to Undetected, F leads to Hidden, Critical Failure (CF) leads to Observed.