WotLK Need help with quest can't finish it

[CikoDRE]

Hello

I need help with 1 quest in Blade's Edge Mountains

Quest name is "What Came First, the Drake or the Egg?"

So this is what i must do to finish the quest http://prntscr.com/wa2zyg

Problem is i can't get Adolescent and Mature nether drake essence cuz when i brake the egg Adolescent and Mature nether drakes are green i guess it's cuz of my exalted reputation( I must kill them to get essence)...

http://prntscr.com/wa31s2
http://prntscr.com/wa32cv


This is last quest for my achievement "On the Blade's Edge" im at 85/86 http://prntscr.com/wa312b

Is there any solution?? Please help

[Kamil87]

Go in your reputation tab, click Netherwing reputation, Check the box At War. You will be able to kill them.

[CikoDRE]

Thank you very much!

[Amanotimena]

But what will happen with Netherwing rep after it?