
GM_NotAngryButUpset |

1d3 ⇒ 2
Intrigued by the strange apparatus of the room, the group enters and tries to make sense of it. Stepnik reviews the crude model of the level and is able to discern the rooms function as a listening chamber, able to spy on the goings on throughout the level. But, by then, Sebastien tries to do his best Lars Ulrich on the listening devices. Is it 'Enter Sandman'? 'Call of Ktulu'? 'Harvester of Sorrow'? 'Master of Puppets'? 'Eye of the Beholder'? 'The Thing That Should Not Be'?
No, unfortunately, he chooses 'Creeping Death'.
And, as he bangs obnoxiously on the walls, a swirling, vaguely dwarf-shaped shadow emerges from the darkness and begins reaching out towards him.
Ascaede: 1d20 + 6 ⇒ (9) + 6 = 15 Perception
Sebastien: 1d20 + 8 ⇒ (9) + 8 = 17 Perception
Stepnik: 1d20 + 5 ⇒ (15) + 5 = 20 Perception
Ustemir: 1d20 + 8 ⇒ (1) + 8 = 9 Perception
Weadin: 1d20 + 7 ⇒ (7) + 7 = 14 Perception
Shadow: 1d20 + 14 ⇒ (6) + 14 = 20 Stealth
Worse still, no one notices the shadow until it is too late.
◆Strike: Shadow Hand vs Sebastien Off-Guard: 1d20 + 15 ⇒ (3) + 15 = 18 Hit!
Void dmg: 2d6 + 3 ⇒ (1, 5) + 3 = 9
The misty shadow claws at Sebastien, stealing away his life essence. It then ◆pulls at Sebastien's shadow, sapping his strength!
The shadow then disappears into Sebastien's own shadow on the floor.
◆Hide: 1d20 + 14 ⇒ (7) + 14 = 21
Round 1: Bold May Act!
Shadow (Hidden to everyone]
Stepnik
Sebastien (9dmg, enfeebled 1)
Ascaede
Waedin
Ustemir
Kolek
The Shadow is Hidden to everyone. That means, you need to use a ◆Seek Action (Perception DC 24) in order to Observe the Shadow.

Waedin Craftsdotter |

Garena perserve us! Waedin yells in panic as she vaguely sees what happened.
◆ RK
Religion RK: 1d20 + 7 ⇒ (6) + 7 = 13
◆ Search
Perception Seek: 1d20 + 7 ⇒ (1) + 7 = 8
What's Happening!
◆ Stride to Seb since she's got no clue about anything!

Sébastien of The City of a Hund |

It burns! It burns us! Our skins! Our... precious!
The dramatic Bard stumbles a bit after that experience leaves him a bit Enfeebled.
The Halfling then Seeks the bad touch ghost dwarf.
Perception(E) DC 24, keen eyes: 1d20 + 8 + 2 ⇒ (3) + 8 + 2 = 13
Your eyes are sharp, allowing you to make out small details about concealed or even invisible creatures that others might miss. You gain a +2 circumstance bonus when using the Seek action to find hidden or undetected creatures within 30 feet of you. When you target an opponent that is concealed from you or hidden from you, reduce the DC of the flat check to 3 for a concealed target or 9 for a hidden one.
Rubbing his blue eyes with a clean handkerchief, the Halfling squints around again!
Perception(E) DC 24, keen eyes: 1d20 + 8 + 2 ⇒ (18) + 8 + 2 = 28
I see dead people.
He then Points Out the ghost!

Ascaede Voheque |

So my understanding from reading the entry Seb linked is that according to Point Out, an Undetected foe becomes Hidden. And Hidden requires a flat DC 11 Check to target. Is this correct in this situation?