Haart Has His Reasons | Act II - Seahaven MMX: Legacy Guide

Haart is in the location marked with the blue frame, to the North of Seahaven

Heame, a knight of Seahaven will tell you that Lord Haart is keeping a dark secret.

His house is a block away. If you enter his house during the day, you will not find him there. If you, however, go there at night, his butler tells you that he is not in.

Then, you need to go to the city gate and talk to the guard there. He will tell you that Haart has been crossing the gate just a few moments ago.

Leave the city, go up and discover the area behind the green trees (close the Cyclops's cave). Go in the direction in which you have the city entrance under your character, and you are sure to find Haart and his dark secret (the quest will be updated if you stand nearby).

Haart and his wife

Now, you can tell the inquisitor that Haart has been searching for bandits, which will make him approve of Haart's behavior, or tell him the truth, which will antagonize the inquisitor against the Lord. Either way, you will not receive any payment for your efforts.