"If we're going to this more often, we really need to learn that language," Dalnu said to no-one in particular, "but for now, not a clue as to what to do. We can try some random combinations, but that's all I have. Or wait, there's symbols in the other rooms. There were six strings in one room, maybe they give a key to what we need here."
She would head back to compare the symbols, writing some down so she could compare them against the ones on the big pillars.