A researcher needs the Obelisk of Karza to help with the Crucible project. Recover it from the Hades Nexus and deliver it to him in the Presidium Commons.
Acquisition
Prerequisite: Priority: The Citadel II
Listen to the researcher with a datapad sitting at the Courtyard in Presidium Commons. He is between Points of Interest 3 and 4. He is seeking an artifact containing Prothean language translations.
Walkthrough
The Hades Nexus sector will be accessible on the galactic map after completing Priority: Rannoch mission. Scan the moon Kopis from the Hoplos system in the Hades Nexus cluster.
After handing over the artifact, you will gain 5 Reputation, 15,000 credits and an update to the Alliance Engineering Corps War Asset.