Vor will also join Hallanann tap, tap, tapping on [my bedroom door] the walls and other likely surfaces for discolorations, oddly shaped stones, wiggle blocks and so forth.  "Ye bes thinkin' th' pious brethren bes 'avve 'iddey 'oles, Hallanann?  Stashes they bes nae wishin' th' o;' abbot t' bes knowin' aboot, eh!"  He chuckles as he works.  He will also check out the partitions, seeing if any might be hollowed out and/or movable.

Perception   21   Investigation   15

"If there is one thing I know about the pious," Hallanann says distractedly while looking closely throughout the room, "it's that they like to keep their secrets."

Lia takes up a position where she can cover the others with her crossbow as they work. 

Krusk will look around at the bricks, looking for one that seems out of place. 

Perception: 14

You find a secret door in the wall of the dormitory leads to the chamber where the titan’s cult performed their rites. Six tall bookcases stand near the walls in here, holding the remains of the cult’s library. A massive stone altar, stained with layers of centuries of bloodletting, stands in the middle of the room, cracked in half by sledgehammer blows. Behind it is the remains of a broken statue of Chern, constructed so the striding titan seemed to be made of swarms of insects, writhing worms, and piles of skulls. Between the statue and the back wall, a stone trapdoor is set into the floor, set with a huge iron ring and chain that can be used to pull it open.

"Just lovely..." Lia says as she sees the room.  "suppose we have to go through the trapdoor?" She asks the others.

“Sure, I guess this is it,” Krusk tells Lia. He gets a hold on his Pike +1 in case of monsters in the next room. As he goes in, he scans the room for any threats. Perception: 9

"Aye," says Chikra, eyeing the statue of Chern with visible distaste. "I'd rather not be here longer than I have to." She'll help open the trap door, and make sure that it can either be re-opened from the inside, or blocked so that it can't be closed on them.

As Hallanann walks in and notices the bookshelves, he's going to look over the titles of the books to see what they are. He's interested to glean any information he can about what they were getting into down here and whether or not it could help them track their quarry.

Perception: 6

Investigation: 20

(Just in case you want one or the other of those.)

Hallanann finds that all of the books are written in Titan Speech, an ancient language used to communicate with the gods.  However he finds that one of the bookcases has a shelf with a false back, behind which is a hidden space containing 103 gp worth of coins and gems, a jewel-hilted silvered dagger worth 300 gp, a jade skull with ruby eyes worth 450 gp, a ring of acid resistance, a rod of rulership topped with a black iron skull, and a scimitar of wounding.

Beneath the trapdoor, a stone stairway leads down into a nearly circular chamber, the center of which is a dais that holds the Sidereon: a huge orrery made of alien metal and gemstone, covered with indecipherable symbols and glyphs. Around the base of the orrery, bronze plates inscribed in Titan Speech have been hammered over the mind-altering Slarecian writing on the original structure.

The Sidereon is in motion, its vast rings slowly spinning as it traces the orbits of the strange realms and worlds it describes. As it moves, its components seem to fade in and out of existence, passing into and out of the ethereal and astral realms and occasionally seeming to move through each other in impossible ways. Its machinery is sunk deep into the earth below the dais, causing the floor of the chamber to vibrate as it moves – perhaps only a third of the artifact’s entire mass is actually visible in the chamber. On its pedestal, a plate with the clear outline of a keyhole in its center, surrounded by obscure sigils, rotates around the base of the device as its orbits perform their arcane dance.

Chikra must succeed on a DC 13 Charisma saving throw: 2 or take 4 psychic damage

Krusk must succeed on a DC 13 Charisma saving throw: 18 or take 3 psychic damage

Lia must succeed on a DC 13 Charisma saving throw: 7 or take 1 psychic damage

Newa must succeed on a DC 13 Charisma saving throw: 8 or take 4 psychic damage

Vor must succeed on a DC 13 Charisma saving throw: 16 or take 5 psychic damage

(Hallanann is looking at books, and hasn't gone down yet.)

 The semi-sentient machine feels threatened by your presence. It targets all creatures in its chamber with confusion (save DC 13). The effects last until the beginning of the Sidereon’s next turn.

Chikra must succeed on a DC 13 saving throw: 9 or be confused.

Krusk must succeed on a DC 13 Charisma saving throw: 8  or be confused.

Lia must succeed on a DC 13 Charisma saving throw: 2  or be confused.

Newa must succeed on a DC 13 Charisma saving throw: 12  or be confused.

Vor must succeed on a DC 13 Charisma saving throw: 14  or be confused.

Chikra confused: 4

Lia confused: 7

Newa confused: 9

Chikra (cannot take an action this turn due to confusion)

Lia (attacks at random: 4 )

Newa (no effect of confusion)

Lia attacks Newa with her cross bow: Attack: 7 Damage: 11 vs AC 15

Summary of all the above actions:

Chikra - In the chamber with the Sidereon. confused and can't take an action

Krusk - In the chamber with the Sidereon. 

Newa - In the chamber with the Sidereon. 

Hallanann - looking at books upstaris

Lia -  In the chamber with the Sidereon. Just shot at, but missed, Newa because she was confused

Vor -  In the chamber with the Sidereon. 

After finding the treasure, Hallanann looks around and sees that everyone has moved on, already. So, he pockets it all with the intention of sharing it later.

Then he looks to see where the others went, and moved to follow them.

Charisma Saving Throw (in case I need that, as well, now): 22

Charisma Saving Throw (in case I need that, as well, now): 7

((I forget who took the key for this thing. I think Hallanann did?))

CHA ST #1: 3

#2: 2

R.I.P.

EDIT: Just understood what happened. Disregard those rolls, I thought we had to roll them

Vor will grab the key from Lia and turn the blasted thing off.

Vor, give me a dexterity saving throw to see if you can get it from Lia while she is confused.  DC 12.

Feeling especially threatened by Vor and Lia. the Sidereon casts eldritch blast creating two bolts of energy at the pair.  The confusion lifts, and everyone can take actions in the room.

at Vor - Attack: 19 Damage: 10

at Lia - Attack: 6 Damage: 5

DEX sv  18

And he deftly snags the key and inserts it into the 'keyhole', and click!  (hoping he doesn't turn into a frog or something; he is not really into prince-like stuff).