☆ How to Unlock All 36 Characters
★ Tier Lists: Best Characters and Best Jobs
☆ Farming Guides: EXP, JP, Money
★ Forbidden Weapon Locations
☆ Battle-Tested Equipment Locations
★ Endings Guide | Post-Game Guide

Letter fragments can be found all over Orsterra and are used to recruit Alexia and enter the Isle of Sages in Octopath Traveler 0 (Octopath 0). Read on to learn where to get the Letter Fragments and what you can do with them.
| No. | Location | How to Get |
|---|---|---|
| 1 | ![]() Library in Theatropolis' West |
Interact with one of the bookshelves at the right side of the room |
| 2 | ![]() Waterpool Caves |
Amongst the crates and sacks, southeast of the Tome of Records |
| 3 | ![]() Atlasdam |
Entreat from the Cat of Graceful Bearing (Available after unlocking Animal Whisperer) |
| 4 | ![]() Path to Herminia's Manse |
Northeast of the west exit, guarded by an Elite Enemy (Available after unlocking the Arena in Wishvale) |
| 5 | ![]() Golden Palace: Lower Floor |
Descent to the lower area of the floor, southeast of the map (Can also be chosen as a Belonging) |
This is a list of all the Letter Fragments found in the game. Each one of them will appear as a shining blue object in the overworld.
If you chose the Letter Fragment as a Belonging at the start of the game, the one at the Golden Palace will not appear in the overworld.
There is no bug that makes the fifth Letter Fragment unobtainable. If you have not chosen the Letter Fragment as one of your starting belongings, chances are, you may have missed the one in the Golden Palace or have not unlocked the Arena for your town yet.

The Letter Fragment is required to recruit Alexia to your party. She is found in the library in Theatropolis.
Once you have a Letter Fragment, speak to her. This will unlock the option of using Path Actions on her. Entreat the Liber Magicae Alexiae, and you will have to option to invite her to join your party afterwards.
Alexia Character Profile and How to Recruit
Once you have obtained all of the Letter Fragments, they will combine into the Secret Invitation key item.

The Isle of Sages will be locked until you have the Secret Invitation. If you interact with the gate, the game will tell you how many Letter Fragments you need to find.

After gaining access to the Isle of Sages via the Secret Invitation, players will get to meet the Scholar Isla, and will join your party automatically.
Isla Character Profile and How to Recruit

Beginner Tips for Octopath Traveler 0
All 5 Letter Fragment Locations

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To be specific; the piece you get after the arena is built, you need to catch your first monster, beat it, and then look at the list for the next batch of capturable monsters. This will spawn the 'man-eating flora' and the letter fragment at the same time.