Both Uses

contort
in
The Celestial Railroad
(Auto-generated)

They looked dark, wild, and smoky, with a singular resemblance, indeed, to the native inhabitants, like whom, also, they had a disagreeable propensity to ill-natured gibes and sneers, the habit of which had wrought a settled contortion of their visages.†
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contortion = the act of twisting or bending to an unnatural shape
"Don't you go over to the Celestial City?" exclaimed I. "Oh, no!" answered he with a queer smile, and that same disagreeable contortion of visage which I had remarked in the inhabitants of the Dark Valley.†

Definitions:

(1) (contort)
twist or bend to an unnatural shape -- something such as the human body, a facial expression, or the truth
(2) (meaning too rare to warrant focus)