Don't understand what's wrong (Kholat)

Screens do, hope so clear explain. 4 rocks with skulls coming to the West. Pass a kind of arch in the rock and starts the cut scene.... Well, or the script is triggered. Comes the red mist music and the PHANTOMS flee in all directions. I did like 10 times outplayed, but suddenly in front of me there is this fire anomaly and I'm screwed. What's wrong ? What I did not ? Waited the departure of the fog, the result is the same. Running isn't an option because if you run it will still appear in front of the nose and....