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The only thing was that I didn't complete the golem quest because I couldn't find all the keys. I looked in every ground pile at least two or three times. Oh well, maybe on my next campaign.
Hint: as the journal says, the keys won't be lying on the ground, because Grey Bandits have already collected them. You will most likely find them among the items of other characters.
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I got slaughtered over and over again by the second meeting with the Tattooed Man (at the Friendly Arm Inn) until I realized there were some Flaming Fists and allies just standing around outside the inn with nothing to fight.
This is the good tactic, yes! By the way, I need to know something: was the Tattooed Man called "Tattooed Man" or was he called "Grachus" at the FAI? This might be a bug because his name in FAI should be Grachus, his real name, and other players also mentioned that he was still called Tattooed Man at the Inn. And are you playing stock BG1 or BG1Tutu?