The Detective Duck Train mystery requires you to search train compartments, solve puzzles, collect keys and tools, and connect the evidence to identify the criminal. The final suspect is The Mechanic.
The important answers are SNOWMAN, 46, 4940, and 999. Follow the steps below to complete the Train Mystery without missing the required items or clues.
Compartment 1: Get the First Key
Start in the first train compartment.
Click the red coat to get the Luggage Key.
Use the Luggage Key on the blue luggage to collect the Scissors.
Use the Scissors on the teddy bear. You will receive the Compartment Key.
Try to use the Compartment Key on the door. The door is missing a handle.
Click the blue luggage on the shelf to find the Door Handle.
Place the Door Handle on the door, then use the Compartment Key to unlock it.
Exit into the next compartment.
Compartment 2: Solve the UV Light Puzzle
Equip the UV Light.
You will find a hint that tells you to connect the numbers with the letters.
Use the UV Light to search the walls and objects for hidden numbers.
The numbers you need are: 2041, -3, 80
Use the window reference and the Magnifying Glass to convert the numbers into letters.
The result is:
SNOWMAN
Use SNOWMAN as the password for the briefcase.
Click the Magic Wand and enter the password to open the briefcase.
Compartment 3: Solve the Math Puzzle
Look at the colored triangles inside the briefcase.
The puzzle gives you:
- Blue triangle = 10
- Red triangle = 5
- Green triangle = 4
First calculate: 5 × 10 = 50
Then: 50 − 4 = 46
Enter 46 into the lock.
The lock opens, revealing wires blocking a key.
Collect the Wire Cutters or Scissors and cut the wires.
Take the Key and exit the compartment.
Compartment 4: Find the Safe Code
Equip the Magnifying Glass and examine the wall.
The wall reveals the safe code: 4940
Return to the first compartment and enter 4940 into the safe.
The safe gives you:
- Lockpick Key #1
- Lockpick Key #2
Keep both lockpick keys for the next puzzle.
Compartment 5: Make the Acid
Return to the compartment with the locked doors.
Use the lockpick keys to unlock the three locks:
- S3 Lock — use the first Lockpick
- S2 Lock — use the second Lockpick
- Third Lock — use the remaining Lockpick
After unlocking the doors, collect the Lighter and Potion.
Now make the acid:
- Put the Potion into the jar.
- Use the Lighter to heat it.
- Wait for the reaction to finish.
- Collect the Acid.
Use the Acid on the final lock.
Wait for the lock to dissolve, then enter the newly opened area.
Find the SD Card
Go to room B3.
Click the SD card to collect it.
Remember that the SD card was found in B3 because this location becomes important when identifying the suspect.
Return to the first compartment, where you started.
Find the camera and insert the SD card.
View the photo stored on the camera.
The photo shows that the Staff Room picture was taken from the B2 angle.
The photo also shows the code: 9999
Find the Book
Go to the wall code reader.
Enter: 999
A book will appear.
Click the book and read the investigation clues. The information in the book helps connect the evidence before the final suspect vote.
Identify the Criminal
Now you need to connect the evidence.
First, examine the broken lock with the Magnifying Glass.
You will see a dirt or stain mark on the lock.
Return to room B3, where you found the SD card.
Examine the tools hanging on the wall with the Magnifying Glass.
You will find the same dirt mark on the tools.
This connects the broken lock to the tools in B3.
The tools belong to The Mechanic.
Final Answer: The Mechanic
The evidence points to The Mechanic as the suspect.
Select The Mechanic during the final investigation and vote for him to complete the Detective Duck Train mystery.
Detective Duck Train Codes and Answers
For a quick reference:
- Briefcase password: SNOWMAN
- Math puzzle: 46
- Safe code: 4940
- Photo code: 9999
- Wall code: 999
- Final suspect: The Mechanic
Read more: Detective Duck The Bakery Case | Detective Duck Summer Camp