A sorcerer threatens to make a scroll from the skin of CONAN's women.

After having been lured into a trap and defeated, CONAN has been captured Tsotha, an evil sorcerer. Before leaving CONAN to be fed to a giant snake in his dungeons, Tsotha asks,

What word from you shall I say to your women, before I flay their dainty skins for scrolls whereon to chronicle the triumphs of Tsotha-Lanti?

From "The Scarlet Citadel"
Page 52. "The Complete Chronicles of CONAN"

As threats/brags go that's pretty hardcore, "I have defeated you, and now I'm going to flay your concubines to make a scroll to write about how I beat you on."
Bloody sorcerers!