Ethereum Secrets is a repeatable quest granting 250 Consortium reputation. It involves farming for a [Ethereum Prison Key] then opening an Ethereum Prison, killing the level 70 non-elite who spawns and looting the [Ethereum Prisoner I.D. Tag]. You will only need to complete this quest once to continue the chain. However, only after you have Revered reputation with the Consortium does the next quest in the chain, A Thousand Worlds, become available.