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Those We Have Lost Quest is the second quest of the Sunny Summer Fontinalia event in Genshin Impact 6.7 Luna VIII. See how to move all gears to the other side, the Pagoda Stack gear puzzle, and walkthrough in this guide!
List of Contents

You must complete the Should We Meet Again quest first to unlock the Those We Have Lost quest in Sunny Summer Fontinalia.
Should We Meet Again Quest Guide

First, advance the time forward by two days using the in-game clock. After the time advance, meet up with Sandrone in the Wingalet. After the talk, Sandrone will bring you back underwater briefly. Once you're back in the Wingalet, she'll ask you to go to the aquarium.

Head to the aquarium inside the Wingalet. Once you're there, talk with Citlali and Sandrone. The other characters will arrive and then start filming. Proceed with the dialogue until its finished, and you'll be asked to go to the hidden dwelling with Sandrone.

Use the Teleport Waypoint in the Elton Trench of the Beryl Region. Swim and follow the objective marker until you see a huge rock near some underwater plants. Sandrone will briefly talk to you before asking you to activate the water-insulating mechanism.

Swim into the cave and approach the mechanism to activate it. It will drain the water and open the gates in the cave. Once the water is gone, proceed into the now open hidden dwelling.

Inside Sandrone's old home, interact with the objects that are lit up. Going to the desk starts the Pagoda Stack gear puzzle, where you have to move all gears from one pole to another in the lowest amount of moves.
It does not matter which pole you move all the gears to, what's important is you moved all of them to another pole. All the smaller gears must always stay on top, no bigger gears can go on top of smaller ones.
| How to Move All Gears to the Other Side | |
|---|---|
| Colors |
• Gear 1 - Purple/Violet • Gear 2 - Blue • Gear 3 - Dark Green • Gear 4 - Light Green • Gear 5 - Orange |
| Step-by-Step Guide | |
|
1. Move Gear 1 to the middle pole. 2. Move Gear 2 to the right pole. 3. Move Gear 1 on top of Gear 2 at the right pole. 4. Move Gear 3 to the middle pole. 5. Move Gear 1 to the left pole. 6. Move Gear 2 on top of Gear 3 at the middle pole. 7. Move Gear 1 to the middle pole. 8. Move Gear 4 to the right pole. 9. Move Gear 1 on top of Gear 4 at the right pole. 10. Move Gear 2 on top of Gear 5 at the left pole. 11. Move Gear 1 to the left pole. 12. Move Gear 3 to the right pole. 13. Move Gear 1 to the middle pole. 14. Move Gear 2 to the right pole. 15. Move Gear 1 to the right pole. 16. Move Gear 5 to the middle pole. 17. Move Gear 1 to the left pole. 18. Move Gear 2 to the middle pole. 19. Move Gear 1 to the middle pole. 20. Move Gear 3 to the left pole. 21. Move Gear 1 to the right pole. 22. Move Gear 2 to the left pole. 23. Move Gear 1 to the left pole. 24. Move Gear 4 to the middle pole. 25. Move Gear 1 to the middle pole. 26. Move Gear 2 to the right pole. 27. Move Gear 1 to the right pole. 28. Move Gear 3 to the middle pole. 29. Move Gear 1 to the left pole. 30. Move Gear 2 to the middle pole. 31. Move Gear 1 to the middle pole. |
|

Once you're done exploring Sandrone's old home, head to Alain's bedroom. Sandrone will talk to you for a bit more before asking you to join her in resolving the anomaly of her core using the item she found in Alain's room.

Follow Sandrone back to the living room. She'll sit down in a chair, and you'll be transported to another area. Go through the dialogue and finish it, then you'll find yourself back in Sandrone's old home.

After the talk with Sandrone, go back to the Wingalet. Enter the inside of the ship and talk with Citlali, then finish the dialogue to complete the quest.
| Total Quest Rewards |
Mora x60,150 |
Hero's Wit x6 |
|---|---|---|

Sunny Summer Fontinalia Event Guide
| Event Minigame Guides | ||
|---|---|---|
Deep-Dive Treasure |
Kaleido-Catch |
Curio Ledger |
| Sunny Summer Fontinalia Guides | |
|---|---|
Free Charlotte Skin |
Free Charlotte |
| Sunny Summer Fontinalia Quest Guides | |
|---|---|
Should We Meet Again
|
Those We Have Lost |
Those We Have Kept
|
- |

Those We Have Lost Quest Guide

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