The conversation continued due to small questions that Damon and Abigale had about Andrew, his relationship with his daughters, and everything related to the subject of Purgatory and the fallen god.
Being the dukes of Cannes and relatives of Zaros, it is obvious that they knew more about the subject than most, but they were still in the dark about many aspects. In fact, Andrew himself is in the dark about many things, because as important as his role in this battle and situation was, the reality is that, to date, he is a protégé.
It is Crhono who leads this movement with his dragons and other demigods, of which Zaros is a central part. Andrew has become stronger, but that is something from recent times and he is not yet powerful enough to influence.
Even so, since Andrew had been honest with Damon and Abigale, Zaros decided to tell him some things that they still did not know. Among this he told them, was the meeting of demigods.