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I triggered this quest after reading Edwin Greloff's second map. I need confirmation if this happens only with that map, or with all of Edwin's map. Because I may have to add this to the associated quests of Edwin Greloff's second map, if it is the only map that triggers this quest. — kd103

I can't confirm or deny it, but i suspect that each successive map triggers whichever specific upgrade diagrams quest it pertains to, as well as the parent quest (this one), but that's my best guess, not a fact by any means. I am fairly sure, though, that you don't need to read any map if you just find the diagrams in the course of your travels / looting. Finding them retroactively launches the quest — Game widow (talk) 16:52, 27 July 2015 (UTC)