On Thin Ice AE Mysteries Chapter 3 Walkthrough: Full Puzzle Guide

Master On Thin Ice AE Mysteries Chapter 3 with this complete step-by-step walkthrough. Decode the hard drive, unlock Dan's PC, and crack the locker code.

A fierce winter blizzard has locked down the police station, trapping Detective Kate Gray inside with a lethal ransomware crisis and a treacherous inside informant. If you find yourself stuck solving the police station lockdown, this on thin ice ae mysteries chapter 3 walkthrough provides every solution you need to crack the case. Navigating on thin ice ae mysteries chapter 3 requires keen observation, especially when decoding encrypted files, repairing dismantled computer rigs, and clearing out your fellow officers to interrogate a prime suspect.

Below, you will find comprehensive puzzle breakdowns, exact numeric combinations, and item locations designed to carry you smoothly through the chapter without wasting precious puzzle-skip stars.

Cracking the Police Station Hard Drive: The 6-Digit Code

Chapter 3 opens in the main bullpen of the precinct. A severe storm forces the entire squad to shelter in place, and Kate Gray must immediately inspect the confiscated external hard drive. Interacting with the drive reveals a prompt for a 6-digit combination color-coded in pairs: the first two numbers are blue, the middle two are red, and the final two are green. Beneath the digital input slots lies a distinct geometric waveform pattern.

Looking across the desk, you will notice Murphy's suspect board matches this exact waveform. However, before you can read the details, the board's display panel short-circuits.

Step-by-Step Hard Drive Unlocking Procedure

Fix the Wire: Remove the police department sticker stuck to the suspect board's electrical housing. Use the electrical tape found underneath to bind the exposed wire and restore power to the board.
Identify the Mugshots: Tap on the active display. Several suspect files populate the board, but only three correspond to the highlighted symbols and waveforms mirrored on the locked hard drive.
Translate Aliases into Digits: Identify the three targeted criminals:
- Dimebag: A dime equals 10 cents, giving you the number 10.
- Nooner: Slang for midday or twelve o'clock, yielding the number 12.
- Blackjack: The classic card game total to hit, giving you 21.
Align Colors and Values: Cross-reference the criminal cards with the colored background borders displayed on the hard drive prompt.

Suspect Alias	Associated Value	Display Color	Input Position
Blackjack	21	Blue	Digits 1 & 2 (First)
Dimebag	10	Red	Digits 3 & 4 (Middle)
Nooner	12	Green	Digits 5 & 6 (Last)

By arranging the numbers into the designated color sequence (Blue-Red-Green), you obtain the master code: 21 10 12. Enter this into the hard drive interface to release the digital lock.

Dan’s Office: Scavenging Hardware and Waking the Tech

To prevent malicious ransomware from compromising Kate's workstation, the investigation shifts downstairs to Dan’s specialized IT station. Upon entering his messy office, you discover Dan fast asleep in his swivel chair. To get any answers, Kate must assemble PC cooling hardware and brew a caffeinated concoction to wake him up.

Start by clearing the piles of discarded pizza boxes, paper scraps, and clutter scattered around the room. Pull the fleece blanket out from underneath Dan to make him uncomfortable, then inspect the floor and shelves.

Hardware and Item Locations

Collect the essential gear needed to restore the IT rig and wake Dan:

Item Name	Exact Location	Primary Gameplay Use
Grabber Tool	Leaning near the tall file cabinet	Reaching high storage spaces
Two Fan Bays	Scattered among office shelving	PC cooling assembly
Cabinet Handle	Floor debris near the desk	Repairing damaged office storage
Remote Control	Lower shelf under technical manuals	Controlling the digital photo frame
Plastic Tubes	Inside the locked cabinet (requires handle)	Liquid cooling loop
Liquid Coolant	In the secondary office drawer	PC cooling reservoir
Zap Cola Energy Drink	Top of the tall metal locker	Waking Dan from his deep sleep

Once you install the spare handle onto the broken cabinet drawer, pull it open to claim the cooling tubes. Use the mechanical grabber tool to snag the Zap Cola resting out of reach on the locker crown.

Hand the cold energy drink directly to Dan. The sudden caffeine rush jolts him awake. Before he slumps over again, grab the high-performance graphics card and the soft microfiber cloth lodged under his desk chair.

Connect the two fan bays, the plastic tubes, the coolant jug, the graphics card, and the unlocked hard drive directly into the open PC tower frame.

Digital Photo Frame and Dan’s Computer PIN (5397)

Although the computer hardware boots up, Dan claims he cannot remember his login credentials. He hints that his personal PIN is linked to memorable moments displayed on his digital desktop photo frame. Progressing smoothly through on thin ice ae mysteries chapter 3 requires you to restore this corrupted frame and decipher his numeric logic.

First, tap on the smudged digital photo frame on the corner of Dan's desk. Use the microfiber cloth to wipe away grease and dust. The display remains stuck mid-transition between two family images. Equip the remote control from your inventory and use it to unfreeze the digital transitions, granting you access to his full gallery of photos.

Next, tap Dan’s computer monitors to bring up the password prompt. The system displays four thematic graphic icons:

Red Stopwatch
Blue Snowflake
Orange Fish
Green Gear

Inspect the cycled photographs on the digital frame. Each image corresponds directly to one of these thematic symbols, showing a distinct number embedded in the background or event.

Target Icon	Matching Photograph Scene	Embedded Number Clue	PIN Digit
Red Stopwatch	Escape Room Challenge	Time remaining reads 5 minutes	5
Blue Snowflake	Snowboarding Mountain Trip	Bib number / Lodge sign 3	3
Orange Fish	Conveyor Belt Sushi Dinner	Plate count / Table 9 marker	9
Green Gear	High School Robotics Meet	Team robot designation 7	7

Enter the four-digit combination 5397 on the computer keypad to bypass the administrative lock.

Dan's Master PC PIN: 5 - 3 - 9 - 7

The Hard Drive Sorting Mini-Game

With the desktop open, Kate plugs in the hard drive, but Dan quickly dozes off again. Tapping the primary monitor triggers the Hard Drive Mysteries data defragmentation puzzle.

Your objective is to shift randomized data packets into their appropriate thematic channels:

Top Row: Yellow data packets
Middle Row: White data packets
Bottom Row: Green data packets

Rotate and slide the fragmented memory tracks along the tracks. Ensure no conflicting colored blocks linger on the wrong tier. Once all data blocks sit in their uniform color rows, the hard drive unseals its hidden directory. Shockingly, the logs confirm that Dan himself installed the precinct's ransomware.

Holding Cells: Dismissing the Officers & The 5-Digit Locker Code

Kate needs to confront Dan in the precinct’s detention cells, but officers Jacob, Murphy, and Keiko are crowding the holding area. To interrogate Dan privately about his rogue actions, Kate must create clever diversions to send each colleague away one by one. This sequence forms a major turning point in on thin ice ae mysteries chapter 3.

Clearing the Room

Begin by picking up the bottle of hand sanitizer resting on the intake counter. Tap the framed precinct detention rules hanging askew on the wall to knock it down. Collect the sturdy piece of flexible wire hidden behind the picture frame, and read the posted regulations carefully.

Equip the flexible wire and use it to hook the keyring dangling from Jacob's belt loop while his back is turned. Use this key to unlock the supply locker door along the rear wall.

Inside the storage area, you will find two secure lockers:

Left Locker: Unlatches freely to provide a roll of heavy-duty police tape.
Right Locker: Secured with a 5-digit electronic pushbutton lock coated in thick grime.

Cracking the 5-Digit Locker Combination (40242)

Apply the hand sanitizer from your inventory to strip away the dried gunk obscuring the right locker’s keypad. To decipher the combination, examine the detention rules sign Kate knocked to the floor.

Player Experience Tip: Community reports often highlight this locker riddle as one of the most misunderstood puzzles in the adventure. The sign establishes rules for one prisoner and one visitor. You must calculate totals for that theoretical two-person encounter—not the group of people currently standing in the precinct room!

Evaluate the bold, uppercase terms outlined on the regulation placard:

HANDS: Two individuals present (1 prisoner + 1 visitor) have 2 hands each = 4
NO ITEMS: Prohibited items permitted inside the booth = 0
SHIRTS: Standard clothing count for two individuals = 2
SHOES: Pair of shoes per person (2 pairs total) = 4
MOUTHS: Talking apertures for two people = 2

Rule Requirement Keyword	Mathematical Deduction	Resulting Digit
HANDS	2 people × 2 hands	4
NO ITEMS	Absolute zero rule	0
SHIRTS	2 people × 1 shirt each	2
SHOES	2 people × 2 shoes each	4
MOUTHS	2 people × 1 mouth each	2

Input the code 40242 into the clean numeric keypad. The locker pops open, granting you Dan’s personal belongings.

Officer Eviction Checklist

With the necessary items collected, systematically clear the detention room using targeted inventory hand-offs:

Officer Present	Item Given	Resulting Action
Keiko	Dan's Belongings	Leaves immediately to process evidence; leaves arrest papers behind.
Murphy	Police Tape	Departs to secure the perimeter outdoors against the worsening blizzard.
Jacob	Arrest Papers	Exits the cellblock to file processing documents at the front desk.

With Jacob, Murphy, and Keiko gone, the cell block falls silent, giving Kate complete privacy to question Dan.

Interrogating Dan and Securing the Tactical Laptop

Dan sits slumped inside the locked cell, unable to see clearly and barely conscious. To conduct a productive interrogation, Kate must wake him and restore his vision.

Retrieve Items with the Wire: Use the flexible wire tool through the iron bars to reel in the tin mug and Dan's corrective glasses resting just out of arm's reach.
Collect Dripping Water: Move the tin mug under the leaky overhead pipe in the holding area until it fills to the brim with icy water.
Revive and Equip Dan: Splash the cold water across Dan's face to snap him awake, then hand him his glasses.

The Confession and the Hidden Key

Once his mind clears, Dan breaks down in tears. He reveals the true extortion plot behind the security breach: the ransomware syndicate kidnapped his teenage daughter. The criminals threatened her life unless he planted the malicious code directly onto Kate Gray's terminal. Dan deliberately left messy digital breadcrumbs across the precinct network in hopes that Kate would catch him before his daughter came to harm.

Dan unbuckles his leather uniform belt and passes it through the cell bars. Tap the belt buckle in your inventory inspection view to discover a hidden seam. Open the concealed compartment to extract a mysterious miniature key.

Use this small key on the locked electrical closet situated on the right side of the detention hall. Inside sits a heavily encrypted tactical laptop. Before Kate can boot the machine to track the extortionists, she needs auxiliary components:

Pick up the modular antenna mounted to the closet shelving.
Grab the heavy-duty rechargeable battery pack from the bottom rack.

With the laptop and hardware secured, Kate prepares to pinpoint the criminal network, successfully concluding on thin ice ae mysteries chapter 3. For official updates and additional mystery releases, check out the Haiku Games official website to follow the latest detective titles.

Frequently Asked Questions

What is the hard drive code in On Thin Ice AE Mysteries Chapter 3?

The hard drive passcode is 21 10 12. This sequence is derived by matching the color frames (Blue, Red, Green) with the suspect board aliases: Blackjack (21), Dimebag (10), and Nooner (12).

Why won't the digital photo frame change pictures in Dan's office?

The digital frame is jammed between two files and covered in dirt. You must clean the glass using the microfiber cloth found under Dan's desk chair, then activate the remote control from your inventory to unstick the image carousel and reveal the PIN clues.

How do I solve the 5-digit locker puzzle in the holding cell?

The locker code is 40242. It is calculated from the detention room visitor rules for a single visitor and prisoner (2 people total): HANDS (4), NO ITEMS (0), SHIRTS (2), SHOES (4), and MOUTHS (2).

Where do I find the key for the detention room closet at the end of Chapter 3?

The closet key is concealed inside a secret compartment in Dan's leather belt. Interrogate Dan after waking him with a cup of cold water and giving him his glasses; he will voluntarily surrender the belt containing the key.