Pale Fire created by Kinbote, features an entry for a "Botkin, V.," describing this Botkin as an "American scholar of Russian descent"—and referring to a note in the Commentary on line 894 of Shade's poem, in which no such person is directly mentioned but a character suggests that "Kinbote" is "a kind of anagram of Botkin or Botkine". In this interpretation, "Gradus" the murderer is an American named Jack Grey who wanted to kill Judge Goldsworth, whose house "Pale Fire's" commentator—whatever his "true" name is—is renting. Goldsworth had condemned Grey to an asylum from which he escaped shortly before mistakenly killing Shade,
Isabelline (colour) form of leucism caused by a uniform reduction in the production and expression of melanin resulting in areas of plumage on the back of the bird, normally black, being strongly faded, or isabelline, in appearance. Isabellinism has been reported in several species of penguin. Isabelline and isabella are terms applied in Europe to very pale palomino or cremello horses, animals with a coat colour that is variously described as cream, pale gold or almost white; this is the primary usage of the French ("isabelle") and German ("Isabella") versions of the word. In horses, this colour is created by the action