Quillary-spider will try to remain stealthy, so she won't wait for the others (they are very noisy, and the open door represents a possible threat). She will scuttle into the room through the open door, on the ceiling.

Stealth: 27

Quote from Mingofaust >>

Stealth: 27

(Okay then...)

Quillary-spider gets into the room (along the ceiling), apparently without being noticed. She senses a being (invisible to the eye) sitting on the windowsill, with a broken harp before it. As the others in the party stomp along the hallway, the being stops trying to play the harp, and looks towards the door.

Quillary-spider will be a very quiet spider, but will point one appendage at the place where the being is, and track it with... oh, wait, her friends won't see her either is she's being stealthy.

Quillary-spider will be a very quiet spider and will stay right where she is, tracking the creature. If the party enters, she will break Stealth to bob up and down and point at it. If the creature makes for the door, she will do the same.

Jorin is making his way up the steps, not trying to be too quiet, but also not being too stompy.  One moment Quillary-spider is firmly in his gaze and the next moment, she's vanished.  He pauses for a moment, mouth agape, "This druid is full of surprises." and then continues working down the hall.

Pascal does not like the gray invisible people! I do not like the gray invisible people! LEMME BURN THE HOUSE DOWN

Hildigrim looks at Jorin and Pascal as the party climbs the stairs, but does not reply to either of their comments. (Unless Pascal's comments are actually thoughts, in which case Hildigrim doesn't look at the lizardfolk, because he can't read minds.) At the top of the stairs, the halfling immediately looks at the open door and makes a pointing gesture toward it, but uses the mirror to first look down the hall in its reflection. When he doesn't see any skulks (I'm assuming since spider Quillary didn't), he'll quietly (stealth: 21) move to the open door and use the mirror to peer into the door (around the door frame so the skulk on the window sill would only be able to see his hand and the mirror. Oh, I guess it can see Hildi's reflecting in the mirror if he can see its reflection in the mirror.).

Again, assuming he'll see the skulk sitting on the window sill and that, perhaps, spider Quillary doesn't start bobbing because she doesn't see Hildigrim's hand or the mirror with that stealth roll. Anyway, he'll look back at the others and hold up one finger and mouth the words "window sill" and "Ready?"

Is the harp a physical thing or a skulk (invisible) thing?

Those were indeed my thoughts, as the player.

OoC - DDP, that post, lololol

Jorin nods an affirmative and goes to ready his axes, only to find that they were already ready.  Jorin's axes are always ready.

Note for Quillary:

The harp with the broken strings is a physical object on the window sill.

As stealthy as Hildigrim is, the skulk heard the others walking down the hall. And these things respond to being seen in a mirror. To quote the module ("it" being the grey and horrid figure):  Curtains billow as its gaze snaps to your reflection in the mirror.

Start of combat... For this first round, it will be a little different.

• Quillary goes first. She can sense the skulk, and she is "invisible" to it for this round (advantage on attack if she wants it).
• Hildigrim goes second. He is looking in the hand mirror, and attacks normally. If spider-Quillary remains overhead, Hildi will have sneak attack.
• After those 2 go, everyone else (skulk, Drusk, Pascal, Jorin) do the normal concurrent procedure (include a roll for initiative).

Brandishing his rapier in his free hand (the other still holding the mirror), Hildigrim rushes in and attacks the skulk. "I really hope we're doing the right thing," he comments more to himself than the others.

Rapier attack: 20; damage: 6 piercing damage

Sneak attack if (still) appropriate: 8

Extra d20: 9

Quillary-spider will in fact tap the thing on the head to distract.

Action: Help for whomever attacks it (so I guess wasted on Hildigrim unless he rolls again and gets a critical).
Move: Nope, don't want AoO

(It wasn't a AoO. If she attacked, it would have been with Advantage.)

Hildigrim does a lot of damage (14), but the skulk is still up and menacing.

Drusk initiative: 8, swinging the mace Joybringer. Attack: 7Damage: 8

DM rolls

OOC > I expected that if she was taking the Help Action (which she did, tapping the thing on the head), that would effectively negate her Stealth, and make her subject to an AoO if she then moved to get away.

Drusk goes before the skulk, and his bit of damage is enough to finish off what Hildigrim started. The skulk is down.

(Sorry, Jorin and Pascal... The party is free to look around the room, or check the other rooms. For a description of the harpist room, look at the "spoiler" in post 1471. )

Quillary-spider will scuttle over (on the ceiling) to the large object and pull the sheet off. She expects it to be a large mirror.

Quote from Mingofaust >>

Quillary-spider will scuttle over (on the ceiling) to the large object and pull the sheet off. She expects it to be a large mirror.

Full-length mirror.

If you were able to set it up ahead of combat, you could be up to 40' away and be able to see skulks in the reflection. (The hand mirror requires being next to it.)

Hildigrim — after making sure there aren’t any more skulks in the room — investigates the chest. First, he makes sure it isn’t trapped.

Investigation: 25

If it is trapped, sleight of hand to spring the trap: 15

If it is not (or if he disarmed the trap), he then checks to see if it is locked. If it is, thieves' tools: 17

The chest was not locked or trapped. It is a chest of personal belongings. The rest of the party looks at Hildigrim oddly, about how eager he was to dive into the lady's clothing inside.

Besides random clothing, Hildi finds a silk dress (too large for a halfling), a bottle of common wine, and an unsealed letter to the woman's father (explaining that she has run away from his tyranny).

Quillary-spider picks at the dress a little, but leaves it in the end. It goes and taps on the mirror, looking at the others with a bob.

Drusk to Quillary: "Are you asking us to break the mirror, like Jorin did with the other one?"

(OOC: Spider-Quillary can scratch out written messages. But they should be relatively short.)