Precious Memories (hidden quest)

Hello!
So I'm trying to get all the titles from Savage Lands zone and I'm missing a quest called Precious Memories. I checked wiki and it says theres a hidden quest where u need to find a key in "Emerging Pile of DIrt" beneath Green Tower. I found few of them and tried clicking multiple times but nothing happens. Anyone can help with this?

Okay found it at the place where Shabasatin is at the begining of the quest line. Thank u!

Idk how Wiki works when u write stuff in it but maybe it would be helpfull to take a screenshot of the places where some items (including this one) are to make a search a bit easier. Idk if u can add pics on sides of text or not.
The Defense of that bridge in SL was a pain of a quest to complete as well. Took me two hours to get it done cuz u have to wait for another attack. Basically had to camp there. Thankfully there are other games to play while waiting so I did, put sounds of RoM on highest so I can hear when attack starts and boom!
Idk if that quest in Dalanis zone that starts mini q line where u kill that old guy in sewers is also considered hidden quest but also I found it acidently.