invisible shadow

noun

(in architectural shades and shadows) a three-dimensional space occupied by the shadow projected by a solid and within which a surface is in shadow.

He walked out into it, and a dozen yards away he became a ghostly, almost invisible shadow.

But it was many a day before they met again, though these two also had been born under the invisible shadow of the Dark Star.

A faintest, tiny blur against the stars, a few of them occulted as though an invisible shadow were upon them.

He followed Happy and the alternately visible and invisible Shadow along the paths that twisted among the vats for some distance.

A faintest tiny blur against the stars, a few of them occulted as though strangely an invisible shadow were upon them.

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