I found some [Guardians] at the last mine entrance last night with a locked box. Killed them all and found a book in the box with the title '???' and written by Unknown. Inside it says L' Szith inbal tlus defeated udos z'klean lac doeb alur mercenaries. L'counter-attack starts ulnin! I think it translates to The ten have been defeated we must seek out better mercenaries. The counter-attack starts soon! Also, wasn't there rubble at one of the entrances after it being blown up? I can't see any now, and one of the blockades inside the mine has been blown up, so we can get through.