Also, it occurs to me that Blurg's dialogue when he mentions Lenore is questionable.

He says: "I imagine Lenore would have them in her possession. She served Mystra as a cleric."

Notice the past tense. She "served" Mystra. As in, she no longer serves Mystra?

Is that why she left her Staff of Arcane Blessing behind?

But if she didn't serve Mystra anymore, why was she called back to confer with "the other clerics of Mystra"?