How to finish: Vrykul Story, Bro - Loremaster

Hi.

I can't finish Loremaster for Stormheim - Vrykul Story, Bro.
Is it possible to make chain: To Helheim and Back?
I stuck at:
https://www.wowhead.com/quest=39851/allies-in-death - this quest not working for me.

https://forum.wowcircle.com/showthread.php?t=831464