My Observations
Frequency
Episode 4
Physical Items
- Alien Map Pawns
- Intercepted Note
- Jeremy's Alien Codex
- Jeremy's Letter
- Jordan's Map Pawn
- Map Detail
- Pawn Holders
- Ration Box
- Report Update
- Tower Map Pawn
Websites
- EB Ranger Online
Ranger Code
Movement Strategies
- Burrower
- Flyer
- Jordan
- Salvador
- Sentinel

Physical Items
Alien Map Pawns
Observation
These will be used to track positions on the terrain map.
Intercepted Note
Observation #1
This was dropped by Theo and picked up by Jeremy.
Observation #2
The symbols in the octagon shapes represent numbers. Convert the "numbers" in Theo's list on the opposite sides to ascending numbers 1-11.
Observation #3
The numbers in the triangles must equal the sum of all touching octagon numbers.
Observation #4
The numbers must be written in sequence top to bottom ("start at midnight") and working clockwise ("work till the eleventh hour").
Observation #5
The new code is:
- 21, 24, 25, 30, 26, 18
Observation #6
We must now align this new code with the original one we had Jordan try and find the median (average between each two-digit sum).
- 21 → 15
- 24 → 06
- 25 → 17
- 30 → 04
- 26 → 16
- 18 → 12
Observation #7
Add each group together and divide by two to find the median. This gives us:
- 18, 15, 21, 17, 21, 15
Observation #8
The word "octagon" precedes the coded message.
Observation #9
Octagons have 8 sides. Shift the letters in the code backward by 8.
Observation #10
Once decoded, the message reads:
- "between two lone peaks south of a forest"
Observation #11
Using this clue to find Theo's location on the terrain map, we come up with:
- S-16
Jeremy's Alien Codex
Observation
The symbols Jeremy found carved into things are similar to the ones on Theo's biotech sketch in Episode 3.
Jeremy's Letter
Observation #1
The emergency frequency is 319.315.
Observation #2
This number needs to be shifted by the number of the last sector Jeremy and Jordan were in before getting separated.
- NACS is located in sector T-2.
Observation #3
Shifting the emergency frequency forward by 2 gives us:
- 531.537
Jordan's Map Pawn
Observation
This will be used to track Jordan's position on the terrain map.
Map Detail
Observation
This will be used on the terrain map.
Pawn Holders
Observation #1
These are used to hold the map pawns.
Observation #2
You must punch out the small plastic pieces in the inserts in order to fit the pawns in comfortably.
Ration Box
Observation #1
There is a symbol from Theo on the back of the box.
Observation #2
Inside are more pawns and pawn holders for our terrain map.
Report Update
Observation #1
Little Jeremy is writing his own report...
Observation #2
Once decoded, the ranger words are:
- ALIEN
- BURROWERS
- UNDERGROUND
- TOWER
- CORRUPTED LAND
- BURROWER
- MOVES FORWARD IN STRAIGHT LINES
- UNDERGROUND
- TWO SECTORS PER HOUR
- SEE VERY WELL
- RIGHT ON TOP OF IT
- SEE YOU OR SENSE YOU
- KNOW YOU'RE THERE
- DRAG IT DOWN UNDERGROUND
- BURROWS
- GROUND BECOMES UNSTABLE
- BURROWER PATH
- GROUND COLLAPSED
- INTO THE TUNNEL
- BURROWER
- VIBRATION THROUGH MY BODY
- BURROWER
- MOVING TOWARD THE TOWER
- DIGGING THAT TUNNEL
- NACS
- BASE
- LAST FREQUENCY
Tower Map Pawn
Observation
This will be used on the terrain map.

Websites
EB Ranger Online
Observation #1 - Mission 1: FREQ → Frequency: 531.537
To dial in, use the top 3 "arrow" buttons to toggle the numbers to the left of the decimal and the scroll bars at the bottom to toggle the numbers to the right of the decimal.
Observation #2 - Mission 1: COMM → Transmission Received
Jordan reveals that Madeline didn't make it...
Observation #3 - Mission 1: COMM → Transmission Received
They are still trapped in NACS. We need to refer to the blueprint we received in Episode 3 to find a path out for them.
Observation #4 - Mission 1: COMM → Transmission Received
She gives us a callback frequency:
- 468.992
Observation #5 - Mission 2: FREQ → Frequency: 468.992
We must guide Jordan and Salvador to the exit of NACS using the blueprint we received in Episode 3.
Observation #6 - Mission 2: FREQ → Frequency: 468.992
The correct path is:
- Keep Going
Observation #7 - Mission 2: FREQ → Frequency: 468.992
They encounter a locked door. 14 is the key code.
Observation #8 - Mission 2: FREQ → Frequency: 468.992
Using the biotech sketch from Episode 3, shift the code forward by 14.
- 15-06-17-04-16-12 becomes 28-19-30-17-29-25
Observation #9 - Mission 2: FREQ → Frequency: 468.992 - Audio 2C Solution
- 28
- 19
- 30
- 17
- 29
- 25
Observation #10 - Mission 2: FREQ → Frequency: 468.992
This code does not work. We must now use Theo's updated sketch that we received in this episode.
Observation #11 - Mission 2: FREQ → Frequency: 468.992 - Audio 2D Solution
- 18
- 15
- 21
- 17
- 21
- 15
Observation #12 - Mission 2: FREQ → Frequency: 468.992
The correct path is:
- Hallway
- Chapel
- Keep Going
- C Dorms
Observation #13 - Mission 2: FREQ → Frequency: 468.992
Jordan gives us a new frequency to call:
- 479.659
Observation #14 - Mission 3: FREQ → Frequency: 479.659
We need to make our way to a safehouse at sector Q-9. Their current camp is at sector U-2.
Observation #15 - Mission 3: FREQ → Frequency: 479.659
Use a large map detail for sectors:
- S-3
- S-4
- T-3
- T-4
- S-8
- S-9
- T-8
- T-9
Observation #16 - Mission 3: FREQ → Frequency: 479.659
Use the small map detail for sector:
- U-3
Observation #17 - Mission 3: FREQ → Frequency: 479.659
OMG, so MANY aliens!!! 😱
- There is a Sentinel at R-2 heading east.
- There is a Sentinel at R-9 heading south.
- There is a Flyer at R-9 heading north.
Observation #18 - Mission 3: GRID
The correct path is:
- U-2 → V-3 → U-4 → U-5 → U-6 → T-7 → S-7 → R-8 → Q-9
Observation #19 - Mission 3: GRID
Jordan tells us there are currently Burrowers at:
- T-11 moving west
- F-15 moving east
Observation #20 - Mission 3: GRID
Once we have discovered Theo's location by deciphering his message on the biotech sketch, we can map our way from the safehouse to his location on the terrain map.
Observation #21 - Mission 3: GRID
The correct path is:
- Q-9 → P-10 → O-11 → P-12 → Q-13 → R-14 → S-15 → S-16
Observation #22 - Mission 3: FREQ
After discovering that Theo had carved some of the alien symbols into his own skin, she gives us a frequency to call her back:
- 197.448

Ranger Code


Movement Strategies
Burrower
- They only move forward in straight lines.
- They cannot see humans while it is underground.
- They move two sectors per hour before coming back to the surface. It then freezes in place.
- They don't see very well, but if you are right on top of it they will see or sense you.
Flyer
- They only move in straight lines, at the rate of one sector an hour.
- They can see two sectors in every direction with no blind spots, excluding the cover of forest.
- They can see a human in the forest if they are directly overhead.
Jordan
- Jordan is a force to be reckoned with.
- Nothing holds her back.
Salvador
- Takes an hour to cross a mountain.
- Takes two hours to cross a river.
- He can use forest for cover.
Sentinel
- Circles the perimeter of a large patch of corrupted land at the rate of one sector an hour.
- Takes a total of twelve hours to return to its starting point.
- They have four faces.
- Now, they can see only one sector ahead, with the exception of diagonals.
- In a forested area, they are completely blind and cannot see even the sector right next to them.
- They pay no mind to terrain, meaning they can cross mountains.