In Octopath Traveler, Knowledge is needed for completing certain quests. It is gained via the Scrutinize or the Inquire Path Actions.
List of Knowledge 
Edit
A name surrounded by brackets in the ‘Quest‘ column indicates, that this is a main Quest of the respective Character.
| Name | Description | Obtain | Source | Quest |
|---|---|---|---|---|
| The Guard‘s Situation | He knows little of the true value of the books he guards and the archive keys he keeps. | Atlasdam | The right guard at the entrance to the library | A Mystey is Afoot (Cyrus) |
| Marta‘s Gang | Information about the chivalrous actions of Marta‘s Gang | Bolderfall | The Bandits' Code | |
| A Use for Textiles | Instructions on how to create pantaloons with Gendy‘s fabrics | Noblecourt | ||
| The Headmaster’s Situation | He keeps his keys safe at all times and hasn‘t left his office lately | Atlasdam | Headmaster Yvon | A Mystery is Afoot (Cyrus) |
| Librarian‘s Testimony | “Only the headmaster and the guard possess keys to the archives.“ | Atlasdam | Librarian Mercedes | (Cyrus) |
| Russell‘s Situation | He has quite a debt and understands the true value of the tomes. | Atlasdam | (Cyrus) | |
| Where the Ice Giant sleeps | Information about the jötun in Hoarfrost Grotto. | The Slumbering Giant | ||
| An Eyewitness Account | It seams someone else was there that day, and can prove a certain man‘s innocence. | Flamesgrace | The Innocent Inmate | |
| Rumors of the Knight Ardante | Hearsay about the knight revered by his peers. | |||
| Project Plans | Plans created to improve the living conditions of the impoverished people. | Bolderfall | Sparks of Revolution | |
| The Song of Sokrath | Lyrical information about a legendary knight. | |||
| The Jellypeno | A tip from a reliable source about a potentialy profitable vegetable. | |||
| Where the Giant Boar Roams | The wherabouts of the Hunteer‘s Rites quarry | |||
| Father and Figther | Information about the boys father, who was a swordsman. | Victors Hollow | Doting Aunt ( between the church and the Tavern) | Arena Aspirations |
| Mont d‘Or‘s Condition | A report on the figther‘s condition. | Victors Hollow | A Promising Venture | |
| Estada‘s Condition | A report on the figther‘s condition. | Victors Hollow | A Promising Venture | |
| Byron Family Lineage | The history of the once-noble house of Byron. | S'warkii | Highbrow Historian | |
| How to Train a Tiger | Details on the little-known art of tiger rearing. | S'warkii | Sholar of Beasts | A Cub with No Name |
| Tale of the Beast Tamers | The beast tamers of the Greenwood tribe used forbidden magic and lost their minds to the monsters they sougth to control | S'warkii | Old Storyteller | |
| Witness Testimony | Day and night, people who turn the corner by the inn have been known to just vanish... | Quarrycrest | The Case of the Missing Villagers (Cyrus) | |
| The Sewers | Behind the inn is an entrance to the sewers. | Quarrycrest | (Cyrus) | |
| Where the Incidents happend | It seems the people who have gone missing disappeared by the inn. | Quarrycrest | (Cyrus) | |
| Nina‘s Secret | It seems like Nina was bitten by a blotted viper in the Cave of Rhiyo. | |||
| Meryl‘s Past | Knowledge that Meryl‘s mother and father are not her birth parents. | Clearbrook | Meryl, Lost then Found (I) | |
| Gravekeeper‘s Information | Informatin about the Ventus Dynasty. | |||
| A Safe Route | Details on a safe Travel route for merchants. | West Goldshore Coast | Knowledgeable Traveler (next to the bridge near Goldshore) | |
| Early Ice Thawing | The reason behind the rising river waters. | |||
| The Giant Serpent‘s Master | Information about the giant serpent in the Quicksand Caves. | Northern Wellspring Sands | Injured Scout | Shadow over the Sands |
| Vanessa‘s Destination | It seems Vanessa has been making regular trips to the Caves of Azure. | Goldshore | (Alfyn) | |
| Gossip of Glowworm Moss | It seems Vanessa has been talking about a plant called ‘Glowworm Moss‘. | Goldshore | (Alfyn) | |
| The Book‘s Whereabouts | It seems the book was sold to a man named Dominic. | Stonegard | (Cyrus) | |
| Dominic‘s Seclusion | Dominic has closed himself off from the world since losing his only daugther. | Stonegard | (Cyrus) | |
| Dominic‘s Troubles | Fifteen year ago, Dominic cam many times to by medicine, but had money troubles. | Stonegard | (Cyrus) | |
| Dominic‘s Remorse | Dominic regrets translateing a certain tome for money. | Stonegard | (Cyrus) | |
| Dragon of the Frostlands | Information about the dragon in the Frostlands. | Here Be Dragons | ||
| Dragon of the Cliftlands | Information about the dragon in the Cliftlands. | Here Be Dragons | ||
| Alphas‘s Poem | A Poem expressing the writer‘s innermost emotions. | Bolderfall | Daughter of the Dark God (I) | |
| City of Gold | A legend about the mystical golden City. | Marsalim | Scholary Youth (Above the right stairs) | City of Gold |
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