Direct answer
Objectives follow journal display order. Some depend on your choices; follow the active objective in the game.
Result
Geralt ventured out to find Damien. As the duchess' confidant, he could very well have known where Syanna was being held. Yet locating the valiant captain hardly proved an easy feat. For swarms of vampires summoned by the enraged Dettlaff now prowled the city streets. In the end the witcher tracked down the Palace Guard, which had been decimated in the fight. He draw the necessary information out of its wounded commander and proceeded on his way.
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