Easter Egg Question - Unknown Strange "Rock-to-Pentagram" Mapping?

[Michael Scarn]

Hi All - I finished the game and have been trying to add to the fun by getting all of the Easter Eggs. I'm currently working on the "Unknown Strange rocks" easter egg. I used the Strange Rock Locations Guide and obtained the rocks listed. After gathering all of my rocks, I went to place them in the Safe House only to find that one of the pentagram points wouldn't let me place a rock!

I've re-run through a few of the locations and no rock is there (indicating I picked it up).

Is there a bug where the last rock can't be placed? If not, is there a "Rock-to-Pentagram Point" mapping showing where the corresponding rock is located (the one I can't place is the point furthest to the left - with the first character being 3 thick dashes and the second character being an thin, elongated "U")? It's driving me nuts! Thank you for your help!

Screen of missing rock: https://i.imgur.com/slf4voH.png

[Indy]

Hmm I think this may be one easter egg I didn't do. I did find a youtube video for you. Not sure if it will help: https://youtu.be/H6qubA6_FmY

[Michael Scarn]

Thanks Indy!

The problem is, I have all of the rocks per the guide in my OP. But for w/e reason I can't place the last one!

Before placing them I didn't even see the rocks in my inventory; but I simply could've overlooked them. Does anyone have additional insight surrounding the issue?

[XeRnUno]

Rocks have to be collected in one session.
Only works on normal and hard difficulty.
Only works during night.

[jasnxl]

You're missing Rock 11 - Behind Atilla's mansion, down the cliff side near the water. The guide you linked to shows you the exact location, and it even shows the attic diagram complete with rock number mapping. The only thing is that your diagram is upside down.

BTW, the guide states that John Douglas created the attic diagram to rock mapping. In order to create the map, (since the rocks aren't numbered and don't even show up in inventory), he had to grab one rock, go the attic and place it, and then record the location. Guy deserves much kudos for patiently creating the diagram map.