extraordinary pigments

'The ugly little window proved accessible to the sunset; a fiery parallelogram appeared on the side wall. The cell was filled to the ceiling with the oils of twilight, containing extraordinary pigments.'

'Vladimir Nabokov, Invitation to a Beheading, 1959.

This is the second prison novel I've read lately (the other being C'line's Fable for Another Time, what a rant!) and I am absolutely enjoying it. This is the better book.