Nostalrius Begins - Quality wow vanilla realm (1.12)

Hi,

I started doing onyxia prequest and then by accident i abandoned the quest.
Now I can't find the quest again, the person who is supposed to give me the quest doesnt do it.
I've been looking for hours and hours.
Can you please help me reset the quest chain so I can do it all over again.
Would mean alot to me, so I can raid with my guild.

Thank you so much!
Sincerely
Droxrox

Resolved