A new, secret quest has appeared in Destiny 2: “Exploring the Corridors of Time.” If you want to participate, you need to speak to Osiris and head back into the Corridors of Time and explore a new maze.

Osiris wants you to complete a new lore book for him, and you’ll discover pages as you explore the Corridors of Time. We’re currently unsure if lore is the only reward for this quest, but we’ll continue updating this guide as we learn more.

TRAVERSE THE CORRIDORS OF TIME

To start this quest, you need to speak to Osiris at the Sundial Spire on Mercury. He will give you a chance to go back into the Corridors of Time, like you did to save Saint-14 earlier this season. Walk over to the Sundial’s little computer and activate it.

Now inside the Corridors of Time, walk through the blank area until you reach your first triangle door. For this puzzle, you need to walk through various rooms in a specific order — based on the symbols in front of the door. You don’t need to kill any enemies. Just run door to door.

When you get inside the Timelost Vault, you can walk up to a pool and pick up lore for the new The Pigeon and The Phoenix lore book. You will also see a sword embedded in a grave at the center of the pool, and a code on the floor. If you try to reach the grave, you will get teleported out.

Once you have the lore from the Timelost Vault, walk out the door you came in and back to the Corridors of Time. Walk up to the little obelisk on your right, and interact with it to reset the maze. With the maze reset, walk back through using a different code for another piece of lore.

TIMELOST VAULT CODES

Before you use the first code, familiarize yourself with the gallery above. In the captions, you can see what we’re calling each of the symbols. If you mess up the order, go back through the door you came in and reset the maze.

CODE 1

Plus, Snake, Clover, Hex, Snake, Plus, Diamond

CODE 2

Clover, Clover, Hex, Hex, Plus, Diamond, Snake

CODE 3

Plus, Clover, Diamond, Diamond, Snake, Diamond, Diamond

CODE 4

Diamond, Clover, Plus, Hex, Clover, Hex, Clover

CODE 5

Diamond, Plus, Snake, Hex, Hex, Diamond, Plus

CODE 6

Diamond, Hex, Snake, Hex, Clover, Clover, Plus

CODE 7

Diamond, Plus, Clover, Hex, Snake, Hex, Snake

CODE 8

Clover, Plus, Clover, Hex, Clover, Diamond, Snake

CODE 9

Clover, Clover, Clover, Snake, Diamond, Hex, Diamond

CODE 10

Plus, Hex, Clover, Hex, Plus, Diamond, Hex

Players are still trying to find more codes to unlock more lore pages. There are 19 lore pages, and players are finding solutions to the codes inside the Obelisks around the world, which reset every hour. It looks like players will need to wait 19 real-time hours before someone solves the complete puzzle. We’ll update this guide as we learn more.

Source: https://www.polygon.com/destiny-2-shadowkeep-guide/2020/1/14/21065781/corridors-of-time-quest-traverse-explore-lore-page-timeliest-vault-codes