In the lower chambers...OOC:
Team Stealth Insight!
Bryn, Sizhen, Trece have noticed for a while now that there are not just few guards in this section of the palace, there are NO guards here. It was quite a ways back in the palace maze when there were some sort of guard patrol route that was in process.
This area is very deserted. The single sign that there is at least some rare passage or attendance here is that there are still rare oil lanterns lit. There is only one such lantern in this chamber, a room which seems to be in use now as old furniture storage. The single lantern is at the entrance way, and only serves to cast heavy black shadows into the dim room filled with stacked and lined chairs covered with old tarps.
Beyond this, there is one hallway that goes off into the darkness. There is no light there at all. It seems to be one of the last routes yet unexplored by the group.
As for the chime sound, the group suspects that the sound emanates through a peculiar metal piping that they notice that runs along the high corners of the stone walls. These tubes have periodic funnels that junction out. Only the single chime was heard, but the guess would be that the sound genrated out from these pipe openings.
With all these things in mind, the group must wonder if there is some sort of detection apparatus or signaling measure, an alarm system of some sorts. Still though, none of them have noticed any trip wires, floor panels, trigger bars, or any other traps that they may have tripped inadvertently. All the same though, their intuitions press them to be watchful and alert, as they may have been either detected or at risk of being so.
OOC:
That was sort of a mix of Insight AND Investigation, but high rolls all around justify some pretty direct explanation and description.