The Drunken Lizard Pub

I found a skill book that instructed me how to imbue my weapons, but I accidentally sold it instead of "Benny and the Dragon". Now I cannot recall this very useful skill. I remember vaguely that ectoplasm and serpent venom were used, but could anyone out there give me the specifics?

I have revisited every magic merchant I can find (Aridell, Blackwater, Bordertown), but the book has disappeared.

Thanks in advance!