Slowly on hand and knee the hobbits crawled away out of the turmoil, until at last unnoticed they dropped over the further edge of the road.
A fresh turmoil was surging in its deep wells, and the rivers of fire blazed so fiercely that even at this distance of many miles the light of them lit the tower-top with a red glare.
By fortune the fires that had poured forth in the great turmoils when Sam stood upon Cirith Ungol had flowed down mainly on the southern and western slopes, and the road on this side was not blocked.
Then Frodo stirred and spoke with a clear voice, indeed with a voice clearer and more powerful than Sam had ever heard him use, and it rose above the throb and turmoil of Mount Doom, ringing in the roof and walls.
There are no more uses of "turmoil" in the book.
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She was completely unaware that with one twist of the tongue she could plunge Jean Louise into a moral turmoil by making her niece doubt her own motives and best intentions, by tweaking the protestant, philistine strings of Jean Louise’s conscience until they vibrated like a spectral zither.