When you meet Argos for the second time he'll say different things depending on how the first encounter with him ended like. If memory serves me, it can end in 5 ways (sent Asterion to the valley, accepted the contract without questioning, questioned and got the wrong article, questioned and got the right article, used the Humanities/Leader perk to skip the puzzle). Only one of these will lead to that outcome...
...Sadly I can't remember which one is it, and I can't check now.