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The Dreaming City, The Reef/Ascendant realm
The First Spire Hall of Two Souls
The Keep of Voices is a location in the Dreaming City within The Reef and Ascendant realm, which serves as the prison for the Ahamkara Riven. It is a tower at the head of the city which is accessible during the Last Wish Raid, when a Guardian raid team was sent to kill the Taken Riven and claim her heart.