There was something distinct about the Undercroft entrance at seventh bell.

Early enough that the permit desk clerk hadn’t yet finished the first of his shift. Late enough that the night shifters had long since appeared and left. The runic circle surrounding the entrance itself radiated light at its standard level — even, constant, regardless of what floor you were intending to enter. The clerk entered the information from our permits without making any remarks whatsoever. Three names, three ranks, headed for Floor 7. It was routine work now, having entered the permit desk for Floor 6 so many times.

He paused only for a moment when writing Floor 7.

And then he stamped it and returned the permits to us without saying a single thing, which was appropriate.

When Mira and I reached the entrance, Rin was already there. Efficiently prepared, blades at her hip, and face saying she had already been prepared and made no particular show of it. She glanced at the entrance ring, then at us.

"It’s the same entry protocol as Floor 6," she said. "Until proven otherwise."

"Confirmed," Mira said.

I verified the status of my shortbow — string integrity, number of arrows, quiver placement. All standard pre-entry verification procedures. The rune ring flared as we entered.

This time, the entry point for Floor 7 was different.

It wasn’t the tight entry tunnel that marked the bottom floors and Floor 6, but a small room — not huge by any means, perhaps thirty feet wide, the ceiling too high for me to get an exact measurement with the ambient lighting and my UI system. The walls here were formed of a different stone than previous floors, lighter and more finely grained, the type of work that seemed intentional, as if it had been constructed and not excavated.

As before, the lighting source was still unknown, but the light register was warmer than all previous floors, without reaching the level of torch or sunlight.

PATTERN RECOGNITION II

Environmental note: Floor 7 entry room — built structure, not excavation site. Material different from all other floor materials. Finer graining and more precise joinery evident in the walls. Ceiling out of UI range under current lighting conditions. Light source unknown — slightly warmer temperature than Floor 6 but cooler than torchlight. No proximity markers. No UI tagging for environment.

Conclusion: Data inadequate. Start construction at entry point.

Three separate passages emerged from the entry point. Left, middle, right — all identical in width and height, and no distinguishable differences among the ambient light of each. Floor 6 only had one passage that split off from the main entry passage later. Floor 7 was showing options right away.

"Three passageways coming out of the entry," Rin commented. She already saw the geometry just like I did. "Floor 6’s geometry was a straight path until the first junction."

"Different architecture," said Mira. She was aiming her crossbow at the three entrances and inspecting each sequentially. "Higher quality build work. See the joints of the ceiling."

I did see that — she was right. Whoever built this floor did a better job than the people or things who built the previous floors.

"Left hallway first," I suggested. "Same map as we used for Floor 6. No going fast if we don’t know what we’re seeing."

Rin nodded. Mira was moving towards the left entrance.

Forty feet along the left hallway, and we had a first contact.

But this wasn’t a Shade.

A partial ID appeared for me, but the rest was blank and ended in the familiar "[calculating]". There was an HP bar with nothing inside, and STR estimate started running but did not calculate.

PASSIVE MONITORING — UNKNOWN UNIT

Name: ???

Classification: UNKNOWN

HP: [calculating]

STR estimate: [calculating]

Mood: [calculating]

Active flags: NONE

Humanoid, like the Shades themselves — two arms, two legs, walking on an erect posture, but different from the proportions of a Shade. Taller, more elongated limbs in comparison with the torso. Its skin texture possessed qualities difficult for me to put into words — not that contorted silhouette of the Shades but something definite.

The thing was standing in the middle of the corridor, around sixty feet away from us, and staring back at us.

The thing wasn’t in any kind of evaluation stage that the Shades had. That would be some kind of pause, where it stops to think about what it will do. This was completely different. The way it was looking at us felt like we’d been anticipated.

"It has a partial UI tag," I muttered. "HP bar present, no number. Classification unknown."

"It’s not moving," Rin whispered.

"Neither are we," Mira said.

Fifteen seconds passed. Then thirty. The unit in front of us remained motionless. We stayed just as motionless. The lighting system around us didn’t flicker once, but my UI tried to compute the numerical value of the HP bar.

After a good forty seconds, the thing tilted its head.

"Not a threatening stance," I said.

"Not getting ready to fight," Rin said.

"It knows that," Mira said.

PATTERN RECOGNITION II

Environmental note: Unknown unit — partial UI tag / HP bar present, non-displaying / STR estimate non-completing. Behavioral note: stationary / observation for extended period / head tilt at 40 seconds indicating active processing / no fighting posture adopted / no assessment phase observed — Shade-type assessment phase unlikely due to difference in behavior architecture.

Conclusion: Insufficient data. Cannot assume Shade patterns or kill point apply.

"Drew," I said. Shortbow up, not aiming, just present.

The unit monitored the appearance of the weapon. Did not change position.

"It recognizes the presence of the weapon," Rin said. "See the slight adjustment in its posture? Acknowledgment."

I could see it. There was an alteration in the body language of the unit when the weapon appeared — not fear or hostility but something else. The unit knew the nature of the weapon.

"Intelligent," Mira said. Simply. Neither shocked nor concerned. Cataloguing.

"Shade-level or higher," I told her.

"Higher," Rin replied. "Shades didn’t recognize weapons. They registered threat vectors. This one recognizes shortbows."

I kept the tension in the draw but did not release. The unit stayed put. Silence hung over the corridor.

After a minute, it made one step backwards — unhurried and deliberate — turned, and continued walking down the corridor until we could no longer see it in the ambient light.

We waited another ten seconds after it had disappeared.

"It’s gone," Rin said.

"But it chose to go," Mira said.

This was what was important. I slowly relaxed the draw and let my weapon hang down.

For two more hours, we were mapping the corridor to the left and we did not see the unit again.

Two branch corridors, four turns, the same ceiling height as in the entry chamber. Nothing else found, neither a new unit nor an ambush from above, although I maintained the ceiling scan just because Floor 6 had made it absolutely necessary for me.

In the fourth turn, Rin saw something on the wall.

Not destruction. Not erosion. Intentional markings — geometric in nature, repeating, scored into the lighter stone by some means of precision. She traced them with her fingers, careful to avoid the deeper scoring, as she read the texture.

"Fresh," she said. "The dust around them hasn’t settled yet."

"Something did that," Mira said.

"Something using a cutting tool or something like it," I said, "and the fine motor skills necessary to create a repeating pattern."

We examined the markings for a time.

SELF-GENERATED FIELD DATA — FLOOR 7 UNITS

Designation assigned: UNKNOWN — classification pending

Physical characteristics: humanoid / larger than Shade classification / longer extremities / more pronounced presence

UI display: incomplete identifier / HP bar present non-displaying / STR estimate non-completing / name field unknown

Behavioral characteristics: stationary observation / sustained eye contact / head tilt at 40 seconds / weapon recognition confirmed / voluntary withdrawal at 60 seconds / no aggression initiated

Wall markings: geometric / repeating / fresh / precision cuts — fine motor control confirmed

EXP on kill: ZERO — gating hypothesis still active

Kill point confirmed: UNKNOWN

Engagement protocol: DO NOT ASSUME SHADE PATTERNS APPLY

"We emerge at this point," I said. "We have one contact, one behavior data point, and the wall markings. That is all you need for your first day out here."

Neither objected.

We calculated our exit route based on the information received on contact, confirmed the geometry of the passage consistent with the information gathered at the third intersection beyond the entrance chamber via Pattern Recognition II, and emerged from the rune ring under the midday sun of Ashveil.

The clerk at the permit desk looked up from his work when we emerged.

"Floor 7," he said. Not a question.

"Floor 7," I confirmed.

And that was all the information that he required to write down in his logs.

We took the bench along the canal. Mira already had her notebook ready when we sat down. Rin said nothing at all — that’s the way she acts after coming back from a run without a conclusive readout.

"It decided to retreat," Mira stated. She wasn’t referencing her notes. Her eyes were fixed on the canal. "And that is the single most important piece of information."

"True," I stated. "The Shades did not decide. They ran patterns of behavior. The unit decided for itself."

"And now it can make other decisions," Rin added. "Decisions that we will not appreciate."

"Walls," Mira commented. "The geometric repetition pattern. Precise cutting. That is not instinctive architecture."

"No," I responded. "It is not."

The canal continued to flow past, just as usual. On the other side, a slow-moving barge was visible, with merchant goods covered by tarp.

"The wiki will produce an entry based on what we saw today."

"Partial entry," Mira responded. "Like the UI designation. Incomplete until we have additional data."

I opened the wiki and found that it was already running.

WIKI — POST-CANON ENTRY 005

Subject: Floor 7 unit — classification pending

Designation: UNKNOWN

Physical profile: generating

Behavioral data: stationary observation / weapon recognition / voluntary withdrawal / wall markings — geometric precision

HP: non-displaying

Kill point: unknown

EXP: 0 — gating hypothesis active

Status: INSUFFICIENT DATA — field documentation ongoing

The game had been filling it as it happened. Contact data forming our canon while we sat on the canal bench watching the barge drift past.

"Tomorrow," Rin said.

"Tomorrow," I echoed.

Mira stopped taking notes. Wiki page remained unfinished in my UI, awaiting data we had not yet gathered.

One unit on Floor 7 identified weapons, decided, and etched geometrical shapes in the wall while turning its back on three B-rank runners on initial contact.

And I was really not sure which was worse between the two.