References in classic literature ?
When the morning came, a letter came with it, which told me that my bitterest enemy on earth (you have meddled sufficiently with my affairs to know what enemy I mean) had revenged herself on me in my absence.
While life remained to me, I might be revenged upon him who had wrought me this woe; but can the dead strike?
All that is told here happened some time before Mowgli was turned out of the Seeonee Wolf Pack, or revenged himself on Shere Khan the tiger.