As the grouop make their slow but sure way down the corridor, they keep looking behind them, sure they heard something. However, there were no offshoots, and nothing looked out of the ordinary with the walls. They moved on.
Wuuf gave a dark look across to Growlgra, but said nothing. Grolwgra paused, and then said, "Perhaps the invisible light of the corumbs gives form to the creatures here." Growlgra shuddered. "They had an appearance more frightening that this one is used to. This one feels heart-sick looking at them."
The dark look from Wuuf seemed to have a flavour once more tasrgetted against Petal, somehow. So all was not forgotten. Still, Wuuf also seemed to be a little more respectful too.
Petal kept an eye on Wuuf, and saw the bika move around the start of the pit room as if regaining memories. "The pillar that we thought was holding up the corbum was in the centre there," she said again, "but the pits were blinking. And some could be triggered open." Wuuf moved left and right confused, for everything was static, and seemed locked down in an unmoveable ocean of pits. There was a pad to the right and another almost visible on the opposing side of the room. Wuuf seemed to try and gauge the distance to that. However, she then spotted something on the floor, and silently pawed it for a moment before moving on. The area on the floor seemed to be a scorch, or perhaps a scuff mark.
Petal realised that, of course, Wuuf hadn't metioned where her companions were. They had done things in this room, but had not been fully successful. Where were they, he other champions of the Grey Lord? Why was Wuuf not pushing to find where they were? Petal realised that the bika's companions were most likely dead. Infact, looking around Petal could spot the occasional sign of violence in this room now she looked for it.
Growlgra was standing back, apparently respecting Wuuf's distance instead of looking around himself. It reminded Petal of Wuuf's lack of odd speech that Growlgra (and presumably other bika) used. Was Wuuf that detached from her pack that she deliberately lost her speech patterns? Or had she been so attached to the group she had picked up theirs? Either way, the pack-less bika must have been even more dependant on the companions she found fighting Chaos the previous time.
So really, was Wuuf angry at all at Petal? After all, apparently Wuuf had survived where the rest hadn't. And had found a pack mate again. Shouldn't she be less...angry? Was it guilt? Was Wuuf guilty? Petal did recall Wuuf saying the bika had only recently started on the path of the wizard. Did her passive priest magic mean she had not been able to contribute to the fight, only be able torun and heal? Was Wuuf sub-consciously guilty over surviving, and therefore taking her anger out on Petal? It felt right, although really Petal was only surmising. After all, Petal had seemed to impress Wuuf with her swift actions and magical ability. Even though Wuuf had also been angry at it earlier. That seemed oddly contradictory if there wasa simple, logical reason alone. If the reason were emotional, it might make more sense.
Still, if that was the case, Petal did not have to worry about Wuuf's attitude to the fairy. If this were the case, Petal might need to worry more about Wuuf's connection to the cause, and the bika's emotions. For a moment, Petal felt as if she were forgetting something, or missing something. It was an odd sensation, which passed quickly.
Unfortunately, checking out Wuuf's activities, and being tied to Wuuf's own FUL spell, meant Petal couldn't get of a feel for the place. The corum pillar above screamed in Petal's senses, and overwhelmed her finely tuned ability to feel the room out. All she could tell was the pillar seemed wrong. It was not some simple component of 'IR' or invisible source that was holding the pillar up. It seemed as if nature and magic was being tortured and twisted so violently neither dare try to invoke gravity upon it. Runes that should not be pushed together, that seemed wrong in this case, were screaming and making Petal shake.
It was distracting her and making this room a nightmare to figure out.
I'll leave it there for now, because I've realised without a map I've left you with the wrong impression. The pits are not above you, there are no pits overhead. All the pits are below you, set up like in CSB as a puzzle. Petal's ability to fly can of course circumvent part of it, though she does have two pesky NPCs to worry about that can't fly 
And lol, good old IC. I think Ian draws similar extremes as you - occasionally in the same attack rolls!
Anyway, hope the insight gives Petal something to work with (or work on). Time to figure out the room. If you check somethign specifically, or change the circumstances (cross-check with one of the bika, or use normal senses focused on one area that isn't the pillar) I'll let you roll a new perception check. However, the narrative justification for the 5 will still stand. Whatever runes are holding up the pillar into Chaos's domain are distracting Petal with their obscenity!
