All stories end.
Some stories end well.
And, while many things can be said of the tale of Kuravokul Norvir, I cannot tell you that her story ends well.
“You think you can defeat me now? Come back in a decade, come back stronger, and maybe you’ll have a chance. Don’t worry, I can wait. I could wait forever.”
I draw a lot of neutral or good-aligned liches, so here’s one harkening back to the more classic evil mould.