“The Case: Viral Threat” – All Puzzle Solutions
You’ve puzzled, connected clues, and searched — but maybe you got stuck here and there.
Here you’ll find the definitive solutions for all puzzles, along with explanations of how you could have arrived at them.
Week 1
Puzzle:
You’ll find a sequence of numbers on your note that looks like this:
33° 55′ S, 18° 25′ E
A world map is included.
Solution:
These are geographical coordinates, like the ones used in GPS systems. They consist of latitude (N or S) and longitude (E or W):
33° 55′ S → means 33 degrees, 55 minutes south latitude
18° 25′ E → means 18 degrees, 25 minutes east longitude
You can now look for these coordinates on the included world map.
First, identify the equator line (for North/South) and the prime meridian (for East/West).
South of the equator, at about 34 degrees south, and east of the prime meridian at about 18 degrees east, you will find:
👉 Cape Town, South Africa
Result:
📍 Cape Town is the correct destination.
Puzzle:
You receive a plane ticket that shows two different numbers: a booking number and a flight number.
The solution lies in the flight number – but you have to read it, not calculate it.
Solution:
Take a close look at the flight number. Some of the numbers look like letters.
And if you read the characters as letters, a full sentence suddenly appears.
For example:
The 3 looks like an E
The 1 looks like an I or an L
When you apply this, the flight number clearly spells out the sentence:
👉 Travel to Kigali
Result:
📍 Kigali
Puzzle:
You have a note with sequences of numbers. Each number represents a specific letter – following this simple rule:
A = 1
B = 2
C = 3
…
Z = 26
Solution:
Apply this alphabet-number assignment to the sequence of numbers you received.
This way, you can decode an entire message. The words you uncover can then be linked to a specific place.
In this case, when you decode the message, you’ll find several clues that clearly point to one city:
👉 New York
Result:
📍 New York
🧩 Poem Analysis
Stanza 1–2:
I start in grace, tall and proud,
I lead the word, it speaks out loud.
It's the start of time, truth, and tale,
The twentieth letter, never frail.
➡ This clearly describes the letter T (20th letter of the alphabet, starts “time”, “truth”, “tale”, and is tall when written).
Next, a circle, pure and small,
But with a hat, it stands up tall.
In Nordic tongues, I show my face,
Letter with flair, in island place.
➡ A small circle = o.
“With a hat, it stands up tall” refers to the letter ô, ó, or ø — used in Nordic languages.
➡ So this is ó
Now comes a sound like hush and wave,
It whispers "harbor," sea to crave.
➡ “Sound like hush” → sounds like rsh.
It ends with three: a mountain high,
A warrior's name beneath the sky,
A guide that shows the northern way —
➡ Letter that looks like Mountain -> A.
➡ Nordic Warior is Viking -> V.
➡ Northern way is north -> N.
Together, they complete the bay.
➡ “Complete the bay” — literally describes Tórshavn, which means “Thor’s harbor” in Faroese.
✅ Answer: TÓRSHAVN
Puzzle:
You find a napkin with something written on it in a foreign language. At first glance it’s incomprehensible — it might even look like a made-up language.
Solution:
What helps here is a translator or your detective instinct:
If you run the text through a translation tool or decode it using the appropriate alphabet, one clear word emerges — and that is:
👉 Bangkok
Result:
📍 Bangkok
Puzzle:
You have a series of codes like:
5Z A5 K2 etc.
And you’re given the hint:
5R = M
K2 = M
It sounds confusing at first — but there’s a system behind it.
Solution:
You need to determine whether the number comes before or after the letter — because that determines the direction you move in the alphabet.
Rule:
Number before the letter → move backward in the alphabet
Example: 5Z: start at Z, go 5 letters back → U (Z → Y → X → W → V → U)
Number after the letter → move forward in the alphabet
Example: A5: start at A, go 5 letters forward → F (A → B → C → D → E → F)
Apply this rule consistently to the entire sequence in the puzzle to decode a new word.
If done correctly, it reveals the name of a major Indian city:
👉 Bengaluru (also known as Bangalore)
Result:
📍 Bengaluru
Puzzle:
You receive an alphabetical grid with numbers and letters, but some entries are missing. Your task:
Assign the given letters to the correct numbers
Logically fill in the missing fields
Solution:
If you enter everything correctly and combine the results, a new word appears — the name of the next city:
👉 Kyoto
Result:
📍 Kyoto
Week 2
Puzzle:
You receive several image fragments that don’t seem to belong together. Your task:
Logically assemble the fragments
Recognize the bigger picture
Solution:
If you physically cut out the pieces or mentally combine them, you gradually recognize a famous image — namely:
👉 Christ the Redeemer (Cristo Redentor) on Corcovado Mountain
This statue overlooks the rooftops of Rio de Janeiro — a landmark of the city.
Result:
📍 Rio de Janeiro
Puzzle:
You solve a crossword with questions about Rio & Brazil
Solution:
If you enter all answers correctly, certain squares reveal marked letters
The marked letters form a solution word — but in the wrong order. So you need to look closely and rearrange them.
If you do that, you get:
👉 Giza
Result:
📍 Giza (Egypt)
Puzzle:
Today your path leads through your ear:
Scan the QR code and listen to the audio file.
It quickly becomes clear: it’s Morse code — a classic cipher of dots and dashes (i.e., short and long signals).
At the bottom of the puzzle you’ll find the Morse alphabet.
How it works:
A short tone or dot is “·”
A long tone or dash is “–”
Example:
·– is A
–··· is B
–·–· is C, etc.
Solution:
If you decode the entire Morse message, you’ll get a clear destination:
👉 Paris
Result:
📍 Paris
Puzzle:
You’ve arrived in Paris — and as we know, Paris is not only the city of love, but also of encrypted art.
In front of you is a connect-the-dots puzzle with numbers and letters.
Hint in the text:
“I count from the front, but I spell from the back.”
What does that mean?
The numbers 1, 2, 3, … follow normal order.
The letters must be counted backwards in the alphabet.
Example:
1 → Z → 2 → Y → 3 → X → 4 → W, etc.
Now connect number 1 to letter Z, Z to 2, 2 to Y, Y to 3, 3 to X … and so on.
If you draw all the connections correctly, a picture appears — the outline is clearly recognizable:
👉 A sombrero, a typically Mexican hat
And that makes it clear where to go next!
Result:
📍 Mexico
Puzzle:
You’re given a new poem by Don Paco Rodriguez del Sol — but only an excerpt. This fragment again contains an encrypted riddle.
What do you have to do?
👉 Take the first letter of every word in the stanza!
Do this for the entire poem fragment.
When you fully decode it, you’ll get a solution word — and thus your next destination.
Solution:
From the initial letters of all words, the destination emerges:
👉 Valparaíso
Result:
📍 Valparaíso
Puzzle:
Today you’re facing a classic maze. At first glance it looks like a simple labyrinth — but here, arrows show you the way.
What you need to do:
Follow the arrows precisely.
Trace your path with a thick pen — something will become visible.
Because: the path is more than just an exit — it forms letters!
If you navigate correctly, you’ll clearly see that the path spells out a word.
And what does it say?
👉 Dakar
Solution:
📍 Dakar (capital of Senegal)
Puzzle:
This time you have many small text fragments — each fragment consists of three characters (letters, punctuation marks, or even a space).
Important:
An empty field indicates that a word begins or ends.
Cut out the fragments (or arrange them mentally or on paper).
Your goal is to put all pieces into a meaningful order so they form a sentence.
Solution:
If you assemble all parts correctly, you get the clear message:
"The solution is simpla: capitol of Suriname"
And that is:
👉 Paramaribo
Result:
📍 Paramaribo
Week 3
Puzzle:
Today you’ll need a clear head — because each individual calculation results in a letter.
Steps:
Solve all the calculations.
Enter the letters into the corresponding fields.
Read the resulting solution word or sentence.
If you’ve solved everything correctly, it’s clear:
👉 Your next destination is Melbourne
Result:
📍 Melbourne
Puzzle:
Today’s letter is about the sender’s daughter:
"Yet no journey matters half as much as the one that lets me watch my daughter, Victoria, pirouette across the world’s brightest stages this year. She is the rhythm of my heartbeat—my wife practically begged me to tell you so, and she’s right: everything we do, every mile we cross, is for that girl’s light to shine a little brighter. For her, I would circle the globe twice over."
At first glance, it sounds like a loving anecdote — but be careful!
The letter directly invites you to read between the lines.
The wife’s hint is key: the name Viktoria is not placed there by accident.
👉 Viktoria is not only a first name — it’s also the name of a real city:
Victoria in Canada, the capital of British Columbia.
Result:
📍 Victoria (Canada)
Puzzle:
In front of you is a classic word search — a grid of letters with hidden words.
You’re supposed to find terms that hint at your next travel destination.
What you can find:
The statement “the coldest city in the world.”
If you put everything together, you naturally arrive at the one place widely known as the coldest major city:
👉 Yakutsk (Russia)
Result:
📍 Yakutsk
Puzzle:
In today’s letter there are glitches in the text — conspicuous groups of letters, each placed between asterisks, e.g.:
*grntafar*
The hint is clear: if you rearrange the letters into the correct order, new words appear.
If you solve all these glitches and put them together, a clear sentence emerges that leads you to the solution:
👉 “Try search far east fragrant harbour”
That’s a descriptive name for:
👉 Hong Kong — since this term (“fragrant harbor”) is commonly associated with the metropolis, which has enormous logistics infrastructure without a traditional port operation.
Result:
📍 Hong Kong
Puzzle:
In today’s letter, the agent wonders why he couldn’t find a kiwi.
What he didn’t realize: he was looking for the fruit, but of course what was meant is the animal, which only lives in certain regions of New Zealand — especially on Stewart Island.
👉 This mix-up is the key to the puzzle. The agent is in the wrong place — you need to go where kiwis actually live.
Solution:
📍 Stewart Island (New Zealand)
Puzzle:
Today you receive a cut-up map. You can cut out the pieces, glue them together, or simply assemble them in your head.
If you do, you’ll clearly recognize:
👉 The assembled map shows the Salar de Uyuni, the world’s largest salt flat — located in Bolivia.
Result:
📍 Uyuni (Bolivia)
Puzzle:
It looks like a scientific day — but you’ll still need deduction skills.
You see a periodic table of the elements with certain squares circled.
Each circle stands for a chemical element.
You only need the first letter of each element:
Hydrogen = H
Lithium = Li
…
If you take all the initial letters together, they form a new word:
👉 Hamilton
Result:
📍 Hamilton (Canada)
Week 4
Puzzle:
You receive a secret message in the form of flag signals, like those used by sailors.
At the bottom of the letter, you’ll find a semaphore alphabet — a chart showing which arm position corresponds to which letter.
If you correctly decode each signal, a new destination emerges:
👉 Sofia
Result:
📍 Sofia (Bulgaria)
Puzzle:
You receive two letters:
– One from your organization
– One from the agent you’re looking for
The organization wants you to hand over the agent.
But the agent warns you: Look at all the clues again carefully. Think about the stamps!
Because: On every letter, a capital letter was visible.
If you reopen all the letters in chronological order and note the capital letters, they form a sentence...
The organization wants to release the virus
That turns everything upside down — maybe the agent isn’t the villain after all?
Solution:
📍 Trust the agent!
Puzzle:
Today there’s no single solution — but a decision.
You’re holding two envelopes in your hands:
One from the agent
One from the organization
Now it’s up to you:
Do you trust the organization — or follow your gut and believe the agent?
There’s no wrong answer — just two different endings.
It’s your case. Your decision.
Solution:
📍 Choose for yourself whom you trust.
If you’ve made it this far, you can be proud of yourself.
You didn’t just solve 24 exciting puzzles — you immersed yourself in a cleverly constructed criminal case.
Whether you believed the agent or the organization — you investigated, connected clues, and worked your way a little closer to the truth each day.
Now there’s only one thing left to do:
Lean back, be proud of your detective instincts — or… jump straight into the next case?
Thank you for being part of this adventure. 🕵️♂️🌍
And who knows — maybe the next secret dossier is already waiting on your desk.
