Looking at the slime left behind by the moving rocks, one which she was currently on top of, Scaly could not help curiously observing the slimy substance as it slowly changed color and turned into rocks. More specifically, the same rocks that the island was made out of.
That is to say, these moving rocks were most likely the reason for the island's existence in the first place and from the looks, it almost looked like they were slowly repairing the gaps between the pillars that pierced into the ceiling above. Making the island with over a dozen massive stone pillars into a single massive pillar that supported the ceiling and prevented it from caving in on the underground ocean.