Follow this guide to learn how to complete the Roots of Knowledge quest in Tainted Grail The Fall of Avalon, which initiates a quest chain for Eogan.

You will find different side quests while exploring Avalon and interacting with its people. However, several quests, such as Irrational Hatred, trigger a chain of quests for specific NPCs. This allows you to build a deeper connection by doing errands for them multiple times. One such quest is the Roots of Knowledge, which starts a questline for Eogan, a mysterious keeper. This guide helps you complete the Roots of Knowledge side quest by breaking down its objectives in Tainted Grail The Fall of Avalon.
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How To Complete Roots of Knowledge in Tainted Grail The Fall of Avalon
Find Eogan and Talk to Him

You can find Eogan at the top of the tower in Horns of the South fortress. Start from the back of the fortress and make your way to the tower. As you ascend the wooden stairs, take the path on the right side instead of continuing upstairs. Following the right side wooden path takes you to a rooftop garden, maintained by Eogan. While talking with him, you will find Eogan is mysterious and not social. He also mentions that Ruairc is his best friend, which leads you to the next objective of the quest.
Learn About Eogan From Ruairc
Since Eogan is reluctant to talk, you can only learn more about him from his only friend. Head to the fortress Kitchen and ask Ruairc about Eogan. He reveals that Eogan is a revolutionary, but he gave up all his ideas due to the politics of the Captains. After learning about Eogan’s background information, return to him at the rooftop garden.
Plant and Harvest Eogan’s Seeds

Upon interacting and mentioning Ruairc, he will give you a task of planting seeds. He will also provide you with Eogan’s Special Seeds. Choose one of the plots in the garden and sow the seeds. The plant will take 36 in-game hours to fully grow. Meanwhile, you can focus on other quests or simply pass the time at the bonfire. Once the plant is mature, interact with it to harvest Eogan’s Mysterious Root. Return to Eogan to complete the quest, which also triggers the follow-up quest Pumpkin Peril, where you will need to find and plant pumpkin seeds.
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