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Octopath Traveler 2 official box art featuring the main cast
Square Enix

What is ??? Island in Octopath Traveler 2? – Answered

What's really going on at the mysterious island in Octopath Traveler 2?

Warning: This article contains major spoilers for Octopath Traveler 2!

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During your many adventures in Octopath Traveler 2, you may have come across ‘??? Island‘ in the East Sundering Sea. The game gives you very little information on the purpose of its island, with destroyed structures, a sealed door, and a single save point. While it may seem like there’s nothing of interest here, ??? Island actually holds a huge endgame secret.

What is on ??? Island in Octopath Traveler 2?

The-world-map-from-Octopath-Traveler-2

The ‘??? Island’ found in the East Sundering Sea in Octopath Traveler is part of unlocking a secret optional battle with a major Superboss in what is undoubtedly the most brutal fight in the series.

The Mysterious Superboss on ??? Island

Galdera-from-Octopath-Traveler-2-overlayed-over-his-introduction-in-the-game

The most challenging boss in Octopath Traveler 2 is the SuperboosGaldera‘, who awaits the player on ‘??? Island‘ after completing Al‘s questlines. This fight is somehow even more difficult than in the original Octopath Traveler, though thankfully, you don’t have to fight eight bosses beforehand.

How To Unlock the Fight Against Galdera

A-screenshot-from-the-official-Octopath-Traveler-2-steam-page
Square Enix

Step 1: The Traveler’s Bag

The first step is to complete the ‘The Traveler’s Bag‘ sidequest, available at the end of Chapter 1 regardless of the character chosen as the player character at the beginning of the game. Defeat the thief found at a campfire close to the starting location and return the bag to Al.

Step 2: Procuring Peculiar Tomes

You’ll also need to complete “Procuring Peculiar Tomes,” which can be obtained from the Library in Montwise and requires you to acquire three specific books.

Dispatches from Beastling Island can be stolen or bought from a merchant in Beastling Village.

Far Reaches of Hell is in a chest in the lone guarded house in Crackridge. Knock the guard out and nab the book.

The Curious Legend of the Great Wall is in Southern Stormhail Snows, held by the Archeologist near the mountain entrance.

Step 3: From the Far Reaches of Hell

After you’ve handed each tome in and completed both the Procuring Peculiar Tomes and The Traveler’s Bag quests, you can start From the Far Reaches of Hell.

Approach Al in the Library, who you’ll find struggling to translate your newly acquired novel. Seek out Georges Lazuli on the Nameless Isle found north of Toto’haha. Defeat the boss Gigantes and you’ll be able to acquire How to Decipher Unknown Languages from George.

Take the tome back to Al to complete this quest and unlock the sealed door on ??? Island.

Step 4: Travel to ??? Island

Travel to ‘???‘ in The Sundering Sea and you should notice that the large door is now open. Enter the door to find an injured Al and a long staircase. If you think you’re ready, ascend the stairs and receive the warning: “The sense of danger is overwhelming. Are you certain you wish to proceed?

Select ‘Yes,’ divide your party, and begin the battle against Galderathe true final boss of Octopath Traveler 2.

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Thomas Cunliffe
Thomas has been a freelance writer since 2021 and considers himself a connoisseur of all things Nintendo, Blizzard, and Marvel. Since amassing 145,000+ followers on a Facebook page about Diddy Kong with a backward hat in 2015, Thomas has become a trusted voice in the gaming community across publications such as AOTF, PC Invasion, and Gfinity. His greatest achievements include catching every Pokémon, completing every quest in World of Warcraft (yes, all of them), and naming his dog 'Mass Effect 3.' Thomas is extraordinarily passionate about the video game industry and its community. He enjoys writing about various topics, including popular games like Destiny 2, Fortnite, and WoW, and exploring the latest AAA and indie titles.
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Anna Williams
Anna Williams -- not to be confused with the Tekken character -- is an editor and writer that has been working closely with the anime and manga industry for over four years for a variety of publications including Comic Book Resources, Screen Rant, and We Got This Covered. She has had the opportunity to sit down and talk with key figures in the industry, and continue to grow a vast knowledge of the art and culture that goes into each new seasonal and ongoing franchise. She's also had the opportunity to work alongside indie game developers like Baroque Decay to edit and localize early devlog materials for their upcoming game Catechesis.