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All Occult Artifact Locations in The Mound: Omen of Cthulhu

Find every Occult Artifact location in The Mound: Omen of Cthulhu with this island-by-island checklist for all five Relics of Blasphemy collectibles.

Find every Occult Artifact location in The Mound: Omen of Cthulhu with this island-by-island checklist for all five Relics of Blasphemy collectibles.

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There are five occult artifacts to collect for the Relics of Blasphemy trophy: the Medallion, Jar of Black Ichor, Slave Finder, Mask of Nyarlathotep, and Divining Rod of Yig.

The route runs through White Beach, Saint Jerome’s Fall, The Hallowed Hills, Rio Verde, and Cliffs of Ibarra – North. Each pickup sits just off a landmark path, so use your map marker to line up the island, then follow the cave, bridge, coast, or altar cue for the artifact you are missing.

Occult artifact location checklist

Artifact Where to find it Use
Medallion White Beach, at the small tent by the coast Creates a glitter trail toward buried treasure
Jar of Black Ichor Saint Jerome’s Fall, in the central/eastern cave Lures enemies or coats them in ichor
Slave Finder The Hallowed Hills, past the dark rock path left of the cave Reveals nearby humans and Y’n-bhi
Mask of Nyarlathotep Rio Verde, in the green-lit cave section near the fire Disguises you as a Y’n-bhi
Divining Rod of Yig Cliffs of Ibarra – North, on the central altar Glows when aimed toward buried treasure
 

Use this table as your island-order checklist. If you are sweeping all five in one run, pick up the relevant island maps before entering each area so the route cues are easier to match.

Map prep before entering islands

Before entering an island, buy or grab that island’s map. The handheld map shows your position with a red marker, which helps a lot when a route cuts through caves, dark rock paths, or side trails.

🔑 keyCheck the marker at the landing point, then again when you reach the main landmark named in the route. The map gives you the direction; the landmark tells you where to turn.
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Open the island map before leaving the landing point so you can match the red marker to the route cue before the terrain gets dark.

Medallion location at White Beach

STEP 01 · OF 05

Enter White Beach

Load into White Beach and move straight out from the landing point.

STEP 02 · OF 05

Head left to the beach

Keep toward the left-side beach area instead of pushing inland.

STEP 03 · OF 05

Find the coastal tent

Look beside the sea for the small tent setup near the water.

STEP 04 · OF 05

Pick up the Medallion

Grab the Medallion from the tent area.

STEP 05 · OF 05

Use it for treasure

Strike the Medallion to make glitter appear on the ground, then follow the glitter trail to buried treasure.

Jar of Black Ichor location in Saint Jerome’s Fall

STEP 01 · OF 06

Load into Saint Jerome’s Fall

Open the map and aim for the cave in the central/eastern part of the area.

STEP 02 · OF 06

⚠️ watch outBring out the lantern

Keep the lantern ready before entering because the cave is dark.

STEP 03 · OF 06

Pass the plank bridge area

Move forward to the plank bridge, then continue around the cave route.

STEP 04 · OF 06

Curve left, then right

Go left around the path, then angle slightly right toward the back.

STEP 05 · OF 06

Collect the Jar of Black Ichor

Pick up the Jar of Black Ichor at the rear of the cave.

STEP 06 · OF 06

Use it on enemies

Throw it on the ground to lure enemies, or coat enemies in ichor to trigger a heavy state on nearby creatures.

Slave Finder location in The Hallowed Hills

STEP 01 · OF 07

Travel to The Hallowed Hills

Move to the east-central side of the island using your map.

STEP 02 · OF 07

Go under the stone bridge

Pass beneath the small stone bridge, then loop back over or around the rocky bridge area.

STEP 03 · OF 07

Approach the cave mouth

Head toward the cave ahead, but do not enter it.

STEP 04 · OF 07

Take the left rock gap

Turn left into the dark gap between the rocks beside the cave.

STEP 05 · OF 07

Hug the left rocks

Stay tight to the left-hand rocks and keep following the dark path to the far back.

STEP 06 · OF 07

Collect the Slave Finder

Pick up the Slave Finder from the far back area.

STEP 07 · OF 07

Use it to reveal nearby beings

Blow or strike the Slave Finder to reveal nearby humans and Y’n-bhi.

Mask of Nyarlathotep location in Rio Verde

STEP 01 · OF 10

Travel to Rio Verde

Start in Rio Verde and move toward the central section of the island.

STEP 02 · OF 10

Cross the stream

Go over the stream or river in front of you.

STEP 03 · OF 10

Angle left toward the larger river

After crossing, move left toward the wider river area.

STEP 04 · OF 10

Use the bridge landmark

Look left for the bridge that needs lowering, then shift slightly right.

STEP 05 · OF 10

Pass under the fallen tree or rock

Move under the large fallen tree or rock and enter the cave beyond it.

STEP 06 · OF 10

Push to the green-lit back section

Follow the cave all the way back until the lighting turns green.

STEP 07 · OF 10

Go down toward the fire

Descend the steps, then turn right toward the fire.

STEP 08 · OF 10

Pick up the Mask of Nyarlathotep

Collect the Mask of Nyarlathotep from the altar area near the fire.

STEP 09 · OF 10

Wear it to avoid combat

Put the mask on to temporarily disguise yourself as a Y’n-bhi so enemies ignore you.

STEP 10 · OF 10

⚠️ watch outWarn allies before wearing it

Other players and allies may treat the wearer as hostile while the disguise is active.

Divining Rod of Yig location in Cliffs of Ibarra – North

STEP 01 · OF 07

Travel to Cliffs of Ibarra – North

Enter Cliffs of Ibarra – North and move to the more open southern section.

STEP 02 · OF 07

Head back north through the rocks

From the open area, go north into the rocky passage.

STEP 03 · OF 07

Continue straight through the dark path

Keep moving straight through the trees and rocks without taking side turns.

STEP 04 · OF 07

Follow the green fire

Move toward the green fire in the distance until you reach the central altar area.

STEP 05 · OF 07

Climb the altar steps

Go up the steps at the center.

STEP 06 · OF 07

Collect the Divining Rod of Yig

Pick up the Divining Rod of Yig from the altar.

STEP 07 · OF 07

Use the glowing crystals

Turn while holding it; the crystals glow when you face buried treasure and go dark when you face the wrong way.

Occult artifact uses after pickup

Artifact Use
Medallion Strike it to create glitter on the ground that leads toward buried treasure.
Divining Rod of Yig Watch its crystals; they glow when you face buried treasure and darken when you turn away.
Jar of Black Ichor Throw it to lure enemies, or coat enemies in ichor to affect nearby creatures.
Slave Finder Blow or strike it to reveal nearby humans and Y’n-bhi.
Mask of Nyarlathotep Wear it to disguise yourself as a Y’n-bhi, with the drawback that others view you as hostile.

Medallion and Divining Rod of Yig are the treasure tools, but they work differently: one gives you a visible trail, while the other checks your facing direction. Jar of Black Ichor and Mask of Nyarlathotep help you get past enemies, while Slave Finder is for checking the area around you for humans and Y’n-bhi.

 

Relics of Blasphemy completion check

After picking up the Medallion, Jar of Black Ichor, Slave Finder, Mask of Nyarlathotep, and Divining Rod of Yig, you have covered the five artifact pickups used for the Relics of Blasphemy trophy.

The Crucifix appears in the shop under Support, while Metal Idol, Fort Logbook, and Cthulhu Relic Blade are outside this five-location checklist.

Frequently Asked Questions

How many occult artifacts are there for the Relics of Blasphemy trophy?

There are five: Medallion, Jar of Black Ichor, Slave Finder, Mask of Nyarlathotep, and Divining Rod of Yig.

Where is the Medallion on White Beach?

The Medallion is at the small tent setup by the coast on White Beach, reached by heading straight out from the landing point toward the left-side beach area.

Which artifact helps find buried treasure?

Both the Medallion and Divining Rod of Yig help with buried treasure: the Medallion creates a glitter trail, while the Divining Rod’s crystals point you in the right direction.

What does the Mask of Nyarlathotep do?

The Mask of Nyarlathotep temporarily disguises you as a Y’n-bhi, which lets you move past enemies more easily, but other players and allies may treat you as hostile.

Does the Slave Finder reveal survivors?

Yes. The Slave Finder reveals nearby humans, and it also reveals nearby Y’n-bhi in the same area.


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