Here the characters meet a powerful drow ally, the archmage Vizeran.Ĭhapter 10 is similar to the second chapter. It leads you to Gravenhollow, a stone giant library, which is detailed in Chapter 11. Mantol-Derith is a diverse outpost outlined in Chapter 9. Representatives are present and might even be persuaded to aid the PCs. Like in Princes of the Apocalypse, the various factions are involved. The PCs are summoned and asked to return to the Underdark to gain more information. It is a condition-based event and requires the PCs to accomplish certain things as determined by the DM. Chapter 7 is used once the PCs are ready to emerge from the Underdark.