In VN's novel Pale Fire (1962), Shade's poem is almost finished when the author is killed by Gradus. Shade’s mad commentator who imagines that he is Charles the Beloved, the last self-exiled king of Zembla, Kinbote believes that, to be completed, Shade’s poem needs but one line (Line 1000, identical to Line 1: “I was the shadow of the waxwing slain”). But it seems that, like some sonnets, Shade's poem also needs a coda (Line 1001: “By its own double in the windowpane”).