The ninth stage of the Kanigem Tournaments

I apologize in advance for the off-topic comment directed at Luchik (feel free to delete it if needed), but Romanuel's message about a bug caught my attention... :confused: I just wanted to inquire and get some clarification at the same time. I had a similar situation in an offline game where the computer had two heroes on the map. One died fighting some neutral creatures, leaving behind a tombstone. I killed the second hero, captured all of his two cities, but the game didn't end :confused: Is this a bug?