Eerie Building Blocks can be obtained after solving a Dream Ticker puzzle in Honkai: Star Rail. Find out how to use it and the reward for obtaining all of them here!

How to Use the Eerie Building Block

Repair the Dream Ticker Supervisor

Some of the Eerie Building Blocks are used to repair the Dream Ticker Supervisor who is located in F1 of the The Reverie (Dreamscape). To get to it, teleport to the Space Anchor called Monitoring Room and then go to the marked location shown above.

The Reverie (Dreamscape) Map Guide

Get a Precious Chest as a Reward

Collecting all 15 Eerie Building Blocks and fixing the Dream Ticker Supervisor will spawn a Precious Chest that you can open!

All Penacony Chest Locations

Complete All Dream Tickers in Radiant Feldspar

After you finish submitting Eerie Building Blocks to the Dream Ticker Supervisor at the Reverie (Dreamscape), the only way to spend your remaining Eerie Building Blocks is by exchanging them with the Dream Ticker Supervisor at The Radiant Feldspar.

How to Unlock the Last Dream Ticker

You can access the Dream Ticker Supervisor on the ship by first solving all four Dream Ticker Puzzles in The Radiant Feldspar.

After solving all four puzzles, you will receive a message that unlocks an Adventure Mission called Dreams and the Art of Clock Maintenance (II). Follow the quest marker and it will lead you to the final Dream Ticker Puzzle.

After solving the puzzle, you will now be able to interact with the Dream Ticker Supervisor and exchange all of your remaining Eerie Building Blocks!
Dream Ticker Puzzle Locations and Solutions

How to Get the Eerie Building Block

Solve Dream Ticker Puzzles

You get one Eerie Building Block every time you solve a Dream Ticker puzzle that is scattered around the different areas of Penacony. The Eerie Building Blocks will be used to repair the Dream Ticker Supervisor.

All Dream Ticker Puzzle Locations

Eerie Building Block Information

Eerie Building Block
Description	This box contains eerie puzzle building blocks. It can be returned to the Dream Ticker Administrator. Puzzle blocks that make the Dream Tickers malfunction are sealed here, emitting an ominous aura.

Honkai: Star Rail Related Guides

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Mission Items
Real Treasure Map	Ace Gambler's Precious Part	Astral Express Miniature (Limited Edition)
Firefly's Budget	Legend of the Trailblazer	Symbol of Fortune
80% New Thermal Mining Pickaxe	A Bottle of Draconic Tears	A Bottle of Glass Marbles
A Bouquet of Ball Peonies	A Bunch of Rainbows	A Departing Voyager
A Medicine Concocted by Dan Shu	A Mysterious Key	A Note Between Book Pages
Access Authentication	Access Code for the "Chest"	Ace Gambler's Discarded Part
An Archery Set Gifted For Someone Unknown	Ancient Coin	Angry Gear
Anonymous Package	Anti-Dust Mask	Arlan's ID Pass
Artisanship Commission Jade Seal	Artisanship Commission Standard Parts Set	Auspicious XV
Aventurine's Token	Average Trash	Backup Batteries
Ball Peony	Big Sword	Bitter Dreams
Blue Signal Log	Box of Metal Plates and Bandages	Box of Rubbing Alcohol
Box of Special Painkillers	Broken Ceiling Tile	Brumedew Concentrate Pellet
Caiyi's Exchange Diary	Calm Gear	Chengjie's Paper Boat
Children's Book Package	Chili Oil Beef Offal Stew	Clothes for "That Teacher"
Cloudbreadth Sleeves Limited Vertical Collar Jacket	Clue: “Phrase”	Clue: Booklet
Clue: Dimension-Phasing Flame	Clue: Missing Researcher List	Cognition Chasm: Confidence Crisis
Cognition Chasm: Energy Lifeform	Cognition Chasm: Genius Society Member	Cognition Chasm: Researchers' Disappearance
Cognition Chasm: Spontaneous Human Combustion	Cognition Chasm: The Xianzhou Alliance	Commodity Contract
Common Trash	Compendium of Remedies	Core Module
Corporate Access Authentication	Courtyard Gate Key	Customized Pink Safety Helmet
Cycrane Surveillance Images	Damaged Music Box	Dark Fist Tournament Invitation Letter
Dazzling Golden Watch	Dazzling Rainbowite	Delicate Snow Globe
Delivery Package	Denisovan Slumbernana Pendant	Device Encryption Key
Dirty Mechanical Part	Dirty Ribbon Tied to a Bell	Discarded Letter Sheets
Disciples of Sanctus Medicus Letter	Dismantled Art Pieces	Divine Arrow Embers
Drifting Clouds	Drowning Sweetness	Dud Grenade
Eerie Building Block	Eerie Twig	Elixir of Dragon Oil
Emotion Protoype: Broken Dreams	Emotion Protoype: Everlasting Hatred	Emotion Protoype: Momentary Freedom
Emotion Protoype: The Cloud of Doubt	Emotion Protoype: The Moment of Betrayal	Envision a Rose Forthcoming
Family Photo	Fan With Plain Carp Print	Fate's Epistle
First Snow	Flower Made From Scrap Iron	Folded Photo
Footprint	Fragmented Record of Belobog Ancient Martial Arts	Fragmentum Monster Armor
Friends Going Seperate Ways	Geomarrow Activation Element	Geomarrow Probe
Gift From a Fan	Gilbert's Message	Gold Subscription Commemorative Medallion
Golden Badge	Golden Limited - Aideen Token	Growth Booster
Guild Insignia Rubbing (I)	Guild Insignia Rubbing (II)	Guild Insignia Rubbing (III)
Guild Insignia Rubbing (IV)	Guild Insignia Rubbing (V)	Guild Insignia Rubbing (VI)
Guild Insignia Rubbing (VII)	Guild Insignia Rubbing (VIII)	Guqin Recording
Hanu's Dream Bubble	Happy Gear	Harmonic Chime
Heartbroken Lovers	High Elders' Secret Treasure	Hilt-Wood From the Arbor
Ice-Fresh Raw Frostweave Salmon Slices	Icefire Lotus	Ignis Aureliae
Inspo Jade Abascus: Borderland	Inspo Jade Abascus: Graceful	Inspo Jade Abascus: Metrical
IPC Designer Invite	Jade Abacus of Allying Oath	Jade Tracer
Jing Yuan's Memories	Julian's Time Capsule	Jun Jun, the Cuddly Bear
Kitchen Knife Sent to Spices Supreme Banner	Kluzer's Letter	Lackluster Trash
Language Module	Life-Death Polypore	Logistic Navigation Map
Lost and Found Notice	Lucky One's Black Card	Luocha's Paper Flower
March 7th's “Origin”	Marquise	Master Capote's Fan Reply Card
Master Capote's Life Wiki	Master Capote's Limited-Edition Snapshot	Medicines of Unknown Use
Mei's Notes: Flowers	Mei's Testimony	Mei’s Notes: Learning About Housework
Memory-Peeking Film	Microfilm	Milk Powder Package
Mimic Snow Slugs	Mine Cart Pin	Mine Cart Wheelset
Mini-Neutron Bomb	Misdelivered Letter 1	Misdelivered Letter 2
Misdelivered Letter 3	Misdelivered Letter 4	Mundanite's Insight
Nameless's Memory Bubble	New Guqin Recording	New Tea “Tingyun's Blend”
Note - Searching for Mother in Dreamscape (I)	Note - Searching for Mother in Dreamscape (II)	Note - Searching for Mother in Dreamscape (III)
Note - Searching for Mother in Dreamscape (IV)	Numbers-got-Nerfed Trash	Old Bell
Old Photo of Balakin	Old Photo: Mechanism Energy Hub	Old Tin Box
One-of-a-Kind Trash	Ordinary Trash	Override Module
Package for Peak	Package With Illegible Recipient	Page of Past Dreams
Perfect Geomarrow Crystal	Pharmacological Studies on the Draught of Draconic Surge	Photo of Arlan's Back
Photo With March 7th	Proof of Trust	Property Deed
Qingni's Memories	Recipe: Bright Future	Recipe: Classic SoulGlad
Recipe: Dream Syrup	Recipe: Eternal Endurance	Recipe: High Stakes
Recipe: Pika White Soda	Red Signal Log	Research Records “Intimidating”
Research Records “Title Page”	Revelation Slate	Robot Settlement Level 1 Certification
Robot Settlement Level 2 Certification	Robot Settlement Level 3 Certification	Robot Shell
Rubbings on Paper	Rusted Key	Sad Gear
Shattered Cloud Knight Devastator Glaive	Shattered Jade Seal	Silver Subscription Commemorative Medallion
Small Chest Sent to the Sleepless Earl	Soul-Soothing Paper Kite	Soulheal Special Mix
Space Station Special Permit	Special Autoradiograph	Square Rice Ball
Stainless Steel Plaque	Star-Shattering Blade of Truth	Steinway Falcon Luxury Speedster (Black)
Steinway Falcon Luxury Speedster (Blue)	Steinway Falcon Luxury Speedster (Gold)	Steinway Falcon Luxury Speedster (Rental)
Strange Drill Ornament	Strange Prescription	Sunshine
Surveillance Footage	Swarthy Trash	Television (Limited Edition)
Testimony From the Clumsy Lady	Testimony From the Suddenly Excited Man	The Adventurous Moles: Hidden Treasure — "The Crates Are the Keys"
The Adventurous Moles: Hidden Treasure — "The Missing Miner's Lamp"	The Adventurous Moles: Hidden Treasure — "The Unexpected Parchment"	The Adventurous Moles: Hidden Treasure — "Treasure Hunt on the Battlefield"
The Adventurous Moles: Hidden Treasure — Postface	The Adventurous Moles: Hidden Treasure — Preface	The Adventurous Moles: Hidden Treasure — Table of Contents
The Amicassador's Seal	Thermal-Powered Mechanical Mining Pick	Thousand Stars Access Authentication
Todd's Snack	Toddler Clothing Package	Torn Manuscript Fragment
Transcribed Scripture	Treasure Map	Treasure Map Indicating the Location of Ignis Aureliae
Treasure Map: Cannon	Treasure Map: Information Terminal and Display Monitor Set	Ultra Nickel Part
Undelivered Letter	Unknown Puzzle Fragment	Unnoteworthy Trash
Unpretentious Trash	Unremarkable Trash	Unspectacular Trash
Unusually Colored Lodestone	Used Item Auction Pamphlet	Utopon Unicycler
Videotape: Dim Blue Dot	Videotape: Doomsday	Videotape: Justice
Weapon Shards	Wen Furui's Gift	Whirlbolt Pneumatophore
Yukong's Exchange Diary	Center Room Key	Edited note
Light Bridge Key	Pela's Notes	Portrait With a Clue
Praise of High Morals	Right Room Key	Zhongshan's Letter