Unused necklaces/keys witch ch.4

[Ninth Hour]

I can't figure out what to do with the necklaces of the goat, mother, and forest in chap 4 of the witch storyline. I figured they would be used for some sort of item but having explored all rooms of the second stage (forest of Yig) twice, I can't find what they are supposed to interact with- I'm guessing they're supposed to unlock some door.

[Stallker]

Yep.
Thoes necklaceses need for enter to the Shub-Niggurath temple - take them with you then you go into.

[Mourne]

where is the necklace of the goat?

[Stallker]

Hi!
try to find here: https://www.youtube.com/watch?v=pDmqhl4K4G8