From the first page of the PDF: Restoring the Companion would be the first step toward retaking control of Elturel. Someone must journey into the depths of the Astral Sea to recover the final component, known as the Heart of Light, for the ritual that would restore the Companion. But to find the Heart requires more than just skill. Only the Trinity can lead the way. A Living Forgotten Realms adventure for characters of the Paragon tier (levels 11-20). The adventure is a loose sequel to ELTU4- 4, and connected to SPEC5-1 and ADCP5-1. Plot-wise, the events of this adventure take place before ADCP5-1.