Blackram Critical Soul Shield #7

[39Tan]

So I wanted to aquire achievement for Viridian Soul Shield Collector, and I realized that I've sold 7th piece of it, silly me.

Tried 3 dungeons listed here http://bladeandsoul.gamepedia.com/Blackram_Critical_Soul_Shield, but the soul shields dropped there are 1st,5th 8th and 6th only.

Is there a way I can get 7th one then? 

[AkameSama]

I repeat the 1st dugeon we come across after leavign bamboo village called Abandoned Well.It usually drops shield 1 but also droped shield 6 and 7