Garcia’s Paean: the Echo of Someone in Genshin Impact: how to start and unlock the Principia Arithmetica achievement

In Genshin Impact, Garcia’s Paean: the Echo of Someone is a daily quest for Sumeru that requires you to bring the Seal of the Treasure Thieves to the Inventor. In this guide, we will explain the conditions for starting this quest and how to complete it safely and advance further in the Garcia quest chain. You will also learn how to unlock the secret achievement "Principia Arithmetica".

Walkthrough "Garcia’s Paean: the Echo of Someone"

How to start a task

First, you have to go through the previous assignments of this story chain of dailies, namely: "Garcia’s Paean: Key Items" , "Garcia’s Paean: Substitutes" , "Garcia’s Paean: By Bearings" And "Garcia’s Paean: Easy Peasy" . It is possible that you need to go through them 2-3 times. After that, it remains just to complete daily tasks until the desired quest appears - this may take some time. You can increase your chances of getting the right quests by selecting Sumeru from the Daily Quest Region list in the Traveler's Handbook.

As soon as the necessary daily falls out, you can begin to complete it. Find Garcia in Sumeru using the marker on the map. He spends time in the company of Kaya and Lu Tong, enjoying aromatic coffee, but does not forget about business for a second, immediately picking up the next assignment for the player.

Retrieve the brooches from the Treasure Thieves and give them to Garcia

The goal of this mission is the same as in one of the previous dailies - you need to bring the treasure thieves brooches to the inventor. This time 2 Golden Raven Seals. We have marked a couple of locations with the right opponents in the screenshots below, but you can also refer to our separate guide on farm seals of the golden raven.

Once you have the items you want in your inventory, just talk to Garcia again and give him two blue quality seals. This will complete this quest and you will receive a generic reward corresponding to your adventure rank. You will also have access to the world quest in this chain - "Garcia’s Paean: A Gift of Compatibility".

How to unlock the "Principia Arithmetica" achievement

Also, according to currently available information performed thrice "Garcia’s Paean: the Echo of Someone" rewards the player with Sumeru "Principia Arithmetica" hidden achievement (needs confirmation).