Destiny 2 Expansion I: Curse of Osiris continues your Guardian?s journey with all-new story missions and adventures set in a new destination, Mercury. Journey through time and space to learn the secrets of Osiris, avert a dark future, and rebuild the ties between the legendary Warlock and his greatest student - Ikora Rey.
Expansion I: Curse of Osiris arrives December 5. Purchase the Destiny 2 Expansion Pass and get access to both Expansion I and Expansion II.

http://www.xbox.com/games/destiny-2

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