@BoneyM : It occurs to me that there is an opportunity to convey the First/Second Secret of Dhar to the highest echelons of the Colleges without drawing serious suspicion to ourselves. When we took down the College of Necromancy, we first infiltrated it (and could thus very believably claim to have overheard/overseen the students attempting to form "braids/rope" of dhar); combined with the fact that we snooped on plenty of the vampire's lessons about necromancy, we can easily say that we learned these secrets from spying on the vampire's lessons and then the students attempting to put it into practice--and as for why we didn't publish until now? Well, we were worried that we'd be persecuted for letting it be known to anyone that we knew this, and debated with ourselves for a long time about publishing it in any capacity at all.
Obviously, it'd be even more top secret than the skaven language translation, but just having it as an ace up the sleeve to break out when against a powerful druuki sorcerer or, gods forbid, the return of Nagash (or some other major vampire necromancer)--not to mention the potential for using it against the skaven if they should decide to fight the Empire openly, one day. Or, hell, perhaps it could be something Runelords could use against dhar users (since they can obviously counterspell with fidelity).
Though, I apologize in advance if this has already been thought of/brought up before.