Master Alexander, who escaped from the ship, located on Acres? (Divinity: Original Sin 2)

Master Alexander, who escaped from the ship, located on Acres? Or where is he? Do not tell me? As far as I know it had to kill to find out how to access the scope where the Eternal, which for some reason I had to kill. In General, in the end, I like how this quest is incorrectly passed here to see which combinations of statues of the gods should be used. So, I wanted to kill Alexander.