Possible spoilers......

I've got the quest from Wilhelm Grossenhof to follow his father into the coal mine after dark to see what he is up to. I have the 'Demon's Voice' thing to supposedly talk to him but clicking on him when he appears does nothing. I've tried both before he enters the mine and after he leaves. I thought I'd wait in the mine itself but as with every building time stands still when inside and so nothing ever happens :( What am I doing wrong? Does anyone have any tips on what I should do to finish this quest?

Thanks.

EDIT - this is in the original Legends of Eisenwald game.

ANOTHER EDIT - I found the problem - I had accidentally set the time flow to off so when I wasn't moving nothing happened. I changed it to on and now everything is fine. Why didn't I spot that sooner... :)