It was a nice game with Kandros Fir, nice starting position with gold and flood plains. Copper popped upped some tiles west of my capital. The settler to go for copper was nearly finished when I noticed that near the copper was a Barbarian city. So I took my 3 warriors and went to this city. It had 2 warriors as defenders and was on a hill, so I had bad odds. I parked my 3 warriors in front of the Barbarian city and built another 2 warriors to help attacking. When the 2 warriors were on the way it happened: Acheron spawned. I was pissed off and closed the game..... I find it okay that Acheron spawns near my territory in 50% of my games (Pangea standard size map) because I`m too lazy to raze the Barbarian cities. But I find it very weird that he always spawns in the city I`m standing in front of. So my question is: Have the Barbs a routine to build Acheron when somebody camps in front of their city or happens this by accident ?