Both extend 20' or so then open into large rooms. Nothing else can be made out unless they are entered.

Sir Jovius will move forward to look down the next corridors

Binx walks cautiously, keeping close to the group and trying to stay aware of anything amiss.
.

Beagan starts searching for traps...

“Now suddenly this place seems normal again...unless Cuthulu is currently feasting upon our brains and dictating our reality.”


Today: Beagan WobbleCog rolled 21 using 1d20+7.  Search

   Theo chuckles at Beagan's suggestion. "Well he won't find much to feast on in my head," he asserts.

“That’s a relief.”

Orlen continued with the others to look for clues of the evil that stalked this place. The children lost now, it was sad for the town, but they needed to be sure more children did not fall prey to the evil here.

Sir Jovius looked at his companions
"Shall we try these first tunnels, my fine fellows?"

“I was looking for traps first.”

clover moves with the party maintaining a reserved silence. He is flipping through a small note book lost in thought.

without looking up from his book
I have heard vague rumors of the entity called Cthulhu, if this structure were associated with it. I would be expecting less logic to this complex and we would likely be feeling madness creeping into our minds a bit more.

but I could be very wrong, all I know is gained from obscure references from fragments of obscure books. I would be interested to learn what you know on the subject.

“I found reference to it when researching a true name I had come across, the true name of the entity I dare not even try to name the sea creatures that worship and fear it name it Dagon.” 

No traps are found in the passageway but with all the fog gathered around their feet it would be easy to miss a tripwire or some other hidden trap!

It would be unwise to rule out madness affecting the party. A number of party members have disappeared or have they? Could they not still walk with you speaking and gesturing but could it be that you are not aware of them in your madness?

Orlen continued to search with his friends aware that they could not stay here forever and would need time to return to the surface to rest and relax before venturing forth again. It was still earlish in the day though.

[OOC: assuming you all are continuing down the corridor into the room...]

There is a slight incline in the floor of the passageway and room beyond so that by the time everyone is in the room the ground beneath then is visible. Large black and white tiles are laid into the floor in a basic geometric pattern. The wall too are covered in tiles but smaller and with a greater number of colours.  The design is abstract and disconcerting to the eye.

At the far end of the room is a niche extending from ground level to 12' in height, about 5' wide and 3' deep. Within it, the 'ribbed' stonework similar to the what was seen in the last room is carved but this time horizontally as well as vertically. On the ground in front of it are chunks of stone in various sizes but all are only 2" deep.

   "Phew, it's good to be out of that fog," says Theo, somewhat relieved. "I wonder what's up with that alcove. Or do those bits of stone fit together?" The gnome advances down the room (keeping an eye out for anythin untoward), until he is some 10' away from the bits of stone, at which point he looks at them carefully to see whether they might have been bits of one thing.

“Was this where something broke out?  Is this a prison of some sort?”

Am I the only one thinking of Minecraft from these descriptions?  Never played it..but I am seeing it

[OOC: I've never played Minecraft so I will assume any similarity is a coincidence. Or the Minecraft guys and me are equally bad at Englishing.]

"I suppose it could be," Orlen said.

"That would be problematic," he continued, "If this was a prison then there could be other dangers that still lurk. If a prison though why no guards?"

“Perhaps the creatures are the guards or a means of thwarting escape.”

Sir Jovius snorted a derisive chuckle
"If this is a prison, they're doing a darned poor job of it.  You'd think that there would be a living guard or two, to let us know.    I certainly don't want to trespass on private property, but I can't be blamed if the owners are hiding the whole time"

“Potentially you could see both a break out and a break in and sit back and let the threats eliminate each other....”

Sir Jovius chuckled
"Well, i hope we can give them some entertainment "

While staying 10' away from the stone fragments the group can convince themselves that the bits were once part of a wall or shell that had broken at some time in the past. Any further details would require getting closer.

Too curious for his own good, Sir Jovius moved closer

Binx peers at the mosaic, "A bit hard on the eyes... almost disorienting."