Ok, I know there is something that you can trade an Ability Tome to an in game npc for but I can't remember what it is. I thought it was a Token of the Twelve but the wiki page doesn't mention that. What is it? and, more importantly, can you trade an upgrade tome for the same thing?
(Reason for my question: I received a +2 to +3 Strength upgrade tome a while back, can't remember where from, I think it was a Daily Dice roll or something. It's bound so I can't AH it. And this toon has already used a +4 Strength tome so afaik a +2 to +3 upgrade tome is not useful to me. I was hoping I could trade it to an ingame npc for something useful.)