Chapter 2 - Red Larch, continues

When Sorgrimm dropped his weapons, and when Larrakh fell, the stones levitated.

This tells you, and you can confirm by experiment, that a moderate impact on the floor, such as a dropped object weighing at least 1 pound or a firm stamp of the foot, activates the levitation effect, which lasts for 1 minute. When the floor is active, the stones hover less than an inch off the floor, and they move with a light touch.

You see no obvious pattern.

Here's the map again. You haven't yet explored the two upper rooms.

Yes, Sorgrimm finds that it is the floor that is magical, and exudes transmutation magic. There is no other magic that your group didn't bring in.

I should note for Balak that this area was a large storage cellar and workshop carved out by the dwarves thousands of years ago. The dwarves left behind an odd array of pillars, threshold stones, lintels, and carved stone doors.

Just so we're clear, you all have seen the symbol before.

GM prompt: Do you continue to explore the tunnels or return to the surface and leave the town exposed to possible threats?

Balak was already Headed in that direction...

Going back to the prior room, then north, you arrive at the next room (marked T6 on the map).

The tunnel opens into a square room. In the center of it, a black rock about a foot across hovers three feet from the floor.

Its a big rock (about 20 pounds). Nobody else has a rock that nice.

There seems to be something about the area, above and below it, that causes rocks to levitate.