Post Surtr aftermath - question

[Pro feeder]

Hello everyone. Just a quick inquiry - hope that some of you can help me.

I've just "beated" Surtr on our first encounter, and I'm on my way backtracking the path to the bridge or where ever is it that I must reach.

On the way back, I've encountered one of those yellow colored Surtr altars. It's surrounded with burned bodies. As I approach it, the voices tell me to focus on it. I tried, but nothing triggers.

However, if I spend some time in the vicinity of the altar, the voices of the dead start vailling and screaming, but only that, No other effect.

Is there anything I must do here? I wouldn't want to miss any of the keys / triggers in my progress....

[adhdedrn]

No - if you've defeated Surtr, then you're done. The sound is probably just what happens if you get too close to them.