Diary of Investigations - Upper City

When players reach the Upper City after completing the Unexpected Guests case, one of the things they will notice is that they will have a new Diary of Investigations that contains new cases that are specifically for the Upper City.

The first case is the Unexpected Guests case because it's the case that needs to be completed in order to arrive in Upper City so it makes sense that it's the first one listed (and listed as completed) in the Upper City Diary.

The difference between cases in the Main City and the Upper City is that the Upper City cases do not equal an artifact collection but players will still get a case reward.