So the last entry for the quest I've got is "We found a magic mirror and escapes the death knights, now what?"
Only I grabbed Liandra's diary, and high-tailed it out of there. And the quest didn't close when I escaped. I've got her blood vial, her lab notes, and her diary, but I've no idea how to make this 'weakness to Death Knights', and I'm worried I missed something back in the mine quest, which is why it didn't close.
Any help here?