Veytharion's Sanctuary has four stone blocks, each with a unique symbol. These stone blocks must be placed into a wall, and placed in the correct order, and transferred across from the left side to the right side without having the Fire block touch the Water or Earth blocks. Below, we'll share a step-by-step guide on acquiring the blocks and the correct order in which to move the blocks so you won't get lost and confused as you attempt the Rex Infernus main easter egg quest.

All Stone Block Locations in Rex Infernus

Four stone blocks will spawn in the same spots in every game, but the symbols on these blocks will change. When you find a block, you need to take it to the northwest wall of Veytharion Sanctuary, which is the outer-left room. Here's where to find every block:

  • By the zombie barrier below the Crafting Table.
  • On the ledge of the cliff in the outer-left room.
  • On top of the north pillar in the Veytharion Main Chamber.
  • On top of a ledge at the southwest wall, by Mule Kick.

To get the stone blocks, double jump up to their location and hold interact. While holding the interact button, you can carry the block to the area mentioned above, but don't place any into the wall just yet. For now, leave them on the floor, as we'll talk about the symbols so you know what each stone block means:

Block Image

Block Name

Effects
fire block

Fire

Can interact with Air.

Cannot interact with Earth and Water.
water block

Water

Can interact with Air and Earth.

Cannot interact with Fire.
earth block

Earth

Can interact with Air and Water.

Cannot interact with Fire.
air block

Air

Can interact with Fire, Water, and Earth.

Veytharion Stone Block Puzzle Solution Guide

Veytharion Stone Block Puzzle Solution Guide

To begin, pick up the blocks in the following order and place them into the left column of the wall as shown in the image above:

  • Fire (goes in the bottom)
  • Air (goes on top of Fire)
  • Earth (goes on top of Air)
  • Water (goes on top of Earth)
Veytharion Stone Block Puzzle Solution Guide (2)

Now that you have the stones in the following order, you need to move the Fire and Air blocks into the slots just to the right of the left column, shown above, and in the following order:

  • Fire (goes in the right slot)
  • Air (goes in the left slot)

​​​​​​​When the blocks are in the order shown above, you can now melee or shoot the orange dial in the center. This will send the Fire and Air blocks to the right of the wall. At this point, you will want to follow the steps below exactly as we've written them, and you can watch the video attached to see the solution firsthand:

  1. Place the Fire block in the right column.
  2. Shoot the central orb to send the Air block back to the left.
  3. Pick up the Water block and place it next to the Air block.
  4. Shoot the central orb to send the Air and Water blocks to the right.
  5. Place the Air block on top of the Fire block in the right column.
  6. Place the Water block on top of the Air block in the right column.
  7. Remove the Fire block and place it on the left transfer slot.
  8. Remove the Air block and place it on the left transfer slot with the Fire block.
  9. Shoot the dial to send the Air and Fire blocks to the left.
  10. Place the Air block in the left column.
  11. Place the Fire block in the left column.
  12. Place the Earth block in the right transfer slot.
  13. Place the Air block in the right transfer slot.
  14. Shoot the dial to send the Earth and Air blocks to the right.
  15. Place the Earth block on top of the Water block in the right column.
  16. Shoot the dial to send the Air block to the left.
  17. Remove the Fire block and place it in the slot next to the Air block.
  18. Send the Fire and Air blocks over to the right side.
  19. Place the Air block above the Earth block in the right column.
  20. Place the Fire block above the Air block in the right column.

If you have done so correctly, then the right column will have the following blocks in this order from top to bottom: Fire, Air, Earth, Water. The wall will now open up to reveal a Random Perk Power-Up and a blue portal. Interacting with the portal will make it rain in the next round, which is used for the remaining steps of the easter egg's main quest.

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Call of Duty: Black Ops 7
Action
FPS
Sci-Fi
Systems
PC-1 Playstation Logo Xbox-1
Top Critic Avg: 65/100 Critics Rec: 36%
Released
November 14, 2025
ESRB
Mature 17+ / Blood and Gore, Intense Violence, Strong Language, Suggestive Themes, Use of Drugs
Developer(s)
Treyarch, Raven Software
Publisher(s)
Activision
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WHERE TO PLAY

SUBSCRIPTION
DIGITAL
PHYSICAL

Genre(s)
Action, FPS, Sci-Fi