Drusus's Riddle and Sumeru Bulletin Board Puzzle Guide

Here's how to solve Drusus's Riddle and the Bulletin Board Puzzle in Sumeru City for Genshin Impact. See the unlock location, riddle answers, and rewards here!

How to Unlock Drusus's Riddle from the Bulletin Board in Sumeru

Drusus's Riddle Puzzle Prerequisites

Complete both first and second acts of the Sumeru Archon Quest to unlock the puzzle.

Chapter 3: Act 2 Archon Quest Guide

Where to Unlock

To start Drusus's Riddle, investigate the bulletin board below the Adventurers' Guild in Sumeru City. Interacting with the billboard will give you the first puzzle. Kamal will also talk to you afterwards.

Sumeru Region Map Guide

Drusus's Riddle in Sumeru's Bulletin Board Locations

All Locations for Drusus's Riddle

The answers to the riddles are found in the docks, the Sabzeruz Festival stage, the House of Daena, the pond, and outside Sanctuary of Surasthana.

Click to a section!
Riddle 1	Riddle 2	Riddle 3
Riddle 4	Riddle 5

How to Solve the Bulletin Board Riddles

Open floating boxes and treasure chests as hinted by the Riddle Notes in Sumeru City to solve Drusus's Bulletin Board riddles.

Riddle 1: In the light of alternating day cycles...

"In the light of alternating day cycles, one can see the homeward figure of the lighthouse on the bridge."

Answer to Riddle 1 is located underneath the docks in Sumeru. Open the small floating box to find the answer to the "In the light of alternating day cycles" riddle.

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Riddle 2: A mirror not made of glass reflects every drama

"A mirror not made of glass reflects every drama."

Answer to Riddle 2 is located on the fountain in Sumeru City. Open the small floating box under the bridge to find the answer to the "A mirror not made of glass reflects every drama" riddle.

How to Get to the Fountain

To get to the fountain, teleport to the Waypoint on the east then drop down. The entrance to the fountain should be right in front of the Sumeru Reputation area. This is the area where Nilou danced during the Archon Quest!

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Riddle 3: The sole path to knowledge

"The sole path to knowledge."

Answer to Riddle 3 is located inside House of Daena in the Akademiya. Go inside the library, then immediately look underneath the bridge to find the Treasure Chest for the "The sole path to knowledge" riddle.

How to Get Inside House of Daena

To get inside the library in the Akademiya, start from the teleport waypoint in the east. Simply go up the stairs and go straight until you see the door, then head inside. The treasure chest can be found immediately as you enter!

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Riddle 4: The flowers in the pond are blooming...

"The flowers in the pond are blooming, with watery pearls there lingering."

Answer to Riddle 4 is located in the small pond underneath the Sanctuary of Surasthana. Simply teleport to the waypoint then immediately drop down to the pond. Open the floating box in the edge of the water to find the answer to the riddle "The flowers in the pond are blooming."

Return to all Riddles

Riddle 5: Please go to the front door of the Temple of Knowledge at noon

"Please go to the front door of the Temple of Knowledge at noon."

Simply talk to Drasus west of Sumeru City to find the answer to Riddle 5. The Temple of Knowledge is the Sanctuary of Sarasthana, and you can only find him during noon. Change the time around 12:00 PM to talk to him and complete the puzzle!

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Drusus's Riddle Quest

Access to the Treasure of Wisdom Quest

Drusus's Riddle unocks the quest Treasure of Wisdom: A New Plan. After waiting for server reset, talk to Drusus, who is found on the land beside the docks, to start the quest.

Treasure of Wisdom: A New Plan

Sumeru Bulletin Board Riddle Rewards

Puzzle Rewards

Puzzle Rewards
Hero's Wit x3	Mora x21500

"I've Got It! I've Got It!" Achievement

	"I've Got It! I've Got It!"
	Find and solve a series of riddles in Sumeru City.

Talkin to Drusus's after completing the puzzles rewards you with the "I've Got It! I've Got It!" Achievement, which gives you 5 Primogems.

Genshin Impact Related Guides

Sumeru Region Map Guide

Guides to Sumeru Areas

Sumeru Area Guides
Rainforest Area	Desert Area

Guide to Desert Regions

Sumeru Desert Guides
The Great Red Sand	Desert of Hadramaveth	Girdle of the Sands

Guides to Important Sumeru Features

Notable Sumeru Guides
Dendroculus	Craftable Weapons
Tree of Dreams	Commission Unlock
Reputation	Shrine of Depths
Remarkable Chests

Guides to Sumeru Rainforest Domains

Sumeru Domain Guides
Spire of Solitary Enlightenment	Tower of Abject Pride
Steeple of Ignorance	Under the Umbrella's Shade
Fragment of Childhood Dreams	The Coordinates of Sun and Rain
The Dark Valley

All Sumeru Domains

Guides to Sumeru Rainforest Quests

Archon Quest Guides
Chapter 3: Act 1	Chapter 3: Act 2
Story Quest Guides
Tighnari Quest
Quest Chain Guides
Aranyaka	Woodland Encounter
Dream Nursery	Nursery of Lost Dreams
In the End, the Forest Will Remember	An Unwavering Culinary Dream
Agnihotra Sutra	Varuna Gatha
Vimana Agama
Woodland Encounter Quest Guides
Woodland Encounter	The Children of Vimara Village
Into the Woods	The Lost Child
Bad Guys Hiding in Vimara Village
Dream Nursery Quest Guides
The World of Aranara	Children of the Forest
The Rhythm that Leads to the Gloomy Path	The Rhythm that Nurtures the Sprout
The Rhythm that Reveals the Beastly Trail	For A Better Reunion
Sprouting Seedlings	Festival Utsava
Garden Fairies	Delicious Riddle
Rishboland Tiger, roaaar	Taste of Happiness
An Unwavering Culinary Dream Quest Guides
Cooking, the Flavor of Nature	Cooking, a Pleasant Memory
Cooking, the Aroma of Homecoming	Cooking, the Beauty of Sharing
A Delicacy for Nara
Agnihotra Sutra Quest Guides
Starry Night Chapter	Risen Moon Chapter
The Final Chapter	Aranaga's Memory
Aranakin's Old Friend	Aragaru's Drawing
Memory's Final Chapter
Varuna Gatha Quest Guides
Varuna Gatha	Memory of Stone
Slumbering Roots	Irate Iron Chunk
A Prayer for Rain on the Fecund Land	Giving Flowers
Vimana Agama Quest Guides
Vimana Agama: First Chapter	Vimana Agama: Royinjan's Chapter
Royinjan's Chapter: Linga	Royinjan's Chapter: Yoni
Vimana Agama: Jazari's Chapter	Vimana Agama: Dev Delver Chapter
Until Vana is Healed
Nursery of Lost Dreams and Part IV Quest Guides
For Fruits, Seeds, and Trees Quest Guide	For the Children of the Past
For All Children Who Long for Life	"Hello," "Thank You," and the Final "Goodbye"
World Quest Guides
A Short Encounter with a Rare Bird	Adventure Takes Courage!
Corps of Thirty Recruitment	Cost-Effective Hook
Courage is in the Heart	Even Beasts Stumble
Garcia's Paean: A Gift of Compatibility	Gourmet Supremos: Within Our Duties
Legends of the Stone Lock	Static Views
Static Views Part 2	The Foolish Fatuus
The Path of Papers	The Price
Treasure of Wisdom: A New Plan	Trees and Dreams
Where Are the Fierce Creatures	While the Dream Lingers
Quest Puzzle Guides
Adventure with Aranara	Dream of the Vasara Tree
Look for the Head Mushroom	Observe the Sumeru Roses
Connect Four Relays	Fane of Ashvattha
Inscriptions of Remembrance	Lift the Seal
Marana's Avatar	Vibration of the Seed

All Sumeru World Quests

Sumeru Rainforest Puzzles and Features

Guides for Sumeru Features
Dendrograna and Dendrogranum	The Withering Zones and Decay
Mysterious Clipboard	Aranara Locations
Forest Adventure Journal Chapters	Underwater Waypoint
Tri-Lakshana Creature	Tri-Yana Seeds
Four-Leaf Sigils and Clusterleaves of Cultivation	Seed Mirrors
Stone Pillar Seals	Strange Energy Extraction Device
Eremite Camp Locations	Floating Dendro Puzzle
Arrow Rune Puzzle	Trial of the Phantasmal Gate
Nurseries in the Wild	Strange Parchment
Broken Dendro Monuments	Drusus's Bulletin Board Riddle
Lost Energy Blocks	Vanarana Luxurious Chest
Shrine of Depths

Enemies in the Sumeru Rainforest

Enemy and Boss Guides
Eremites	Aeonblight Drake	Electro Regisvine	Jadeplume Terrorshroom
Shroom-kin	Ruin Drake

All Interactive Map Guides

All Interactive Map Guides