At the end of his Commentary Kinbote (in VN’s novel Pale Fire, 1962, Shade’s mad commentator who imagines that he is Charles the Beloved, the last self-exiled king of Zembla) mentions a bigger, more respectable, more competent Gradus who will presently ring at his door:
"And you, what will you be doing with yourself, poor King, poor Kinbote?" a gentle young voice may inquire.