Describing his visit to a Mrs. Z. in Canto Three of his poem, John Shade (the poet in VN’s novel Pale Fire, 1962) mentions Mrs. Z.'s blue hair:
It was a story in a magazine
About a Mrs. Z. whose heart had been
Rubbed back to life by a prompt surgeon's hand.
She told her interviewer of "The Land
Beyond the Veil" and the account contained
A hint of angels, and a glint of stained
Windows, and some soft music, and a choice
Of hymnal items, and her mother's voice;