Then I knew it was water, winding its way slowly down the mountain, and I saw it far ahead through the black trunks, a straight, moonlit waterfall descending to a boiling pool below.

She found, not far from the boiling pools, great thin crescents of something as darkly iridescent as beetles' wings.

A terrific barrage of heat beams played over the island, and the rock melted, flowed over the ruins, and left only the spumes of steam from the Arctic ice rising from a red-hot mass of rock, contained a boiling pool.

It's using the heat off the boiling pools to rise, riding it like it would any thermal.

Far entwines The low song with the roses and the vines, The high song with the mountains and the pines, The inmost song with secret fibre of light, And in the boiling pools and quorns and chasms Chases the stryges, Death's devote phantasms, Into a brilliant air wherein they are lost.

Before them appeared a boiling pool.

Before he knew it the monster halted beside one of the boiling pools and rotated to face him, its features a mask of supreme evil.

And yet how could any vessel ride the foam of the great falls and not founder in the boiling pools, though laden with water?