Passage to Dawn Passage to Dawn is the fourth book in the Legacy of the Drow series by R . A . Salvatore . It was later reissued as book ten of the Legend of Drizzt series . Summary . In the first part of the book , we learn that Drizzt Do ' Urden and Catti - brie have joined the crew of Captain Deudermont on board the Sea Sprite and have been hunting pirates for the six years after the Battle of Mithral Hall . Now a doppelganger takes Deudermont shape and it isn ' t unmasked before it hints to a mysterious island . Deudermont decides to look for the island to find out who sent the creature . We know that that is the demon Errtu , who needs Drizzt to break his banishment . We also learn that now Mithral Hall is reigned by Gandalug Battlehammer , and that Bruenor Battlehammer , some of his dwarves and the barbarians from Settlestone led by Berkthgar the Bold have moved back in Icewind Dale . In the second part of the book the Sea Sprite crew goes to Mintarn in search of information about the mysterious Caerwich . They are attacked by pirates , but they manage to escape also because of the magical arrival of Harkle Harpell , who joins the crew . After a long and perilous journey , the Sea Sprite reaches Caerwich . There more dangers await the companions , but they eventually find an old hag who gives a riddle message to Drizzt and Catti - brie . The drow believes that the message implies that his father is alive and held by Lolth . The companions decide to look for more information from a fiend of the Abyss , contacting it through a priest . On the journey back , the Sea Sprite is nearly destroyed by a storm and is saved by Harkle , whose spell magically transports the damaged schooner in Impresk Lake , near the residence of the priest Cadderly Bonaduce . In the third part of the book Harkle Harpell , through a powerful spell , reveals information about the nature of the foe to Drizzt at the cost of his memories of the present adventure with the companions . With the aid of Cadderly , summoning an imp from the Abyss , the companions have confirmation that their foe is not Lolth but Errtu . Drizzt and Catti - brie have Cadderly to summon the demon to confront it , but it doesn ' t reveal who its prisoner is and claims to be now free from the banishment . The drow and the girl decide to go to Icewind Dale where Crenshinibon lies , the place where Errtu will more likely show up . In the meantime the crystal shard itself is found and taken by Stumpet Rakingclaw . In the fourth part of the book Drizzt and Catti - brie return to Icewind Dale and meet their friends Regis and Bruenor . The companions spend some pleasant time there before revealing the reason of their return . In the meantime Berkthgar challenges Revjak and becomes the new leader of the barbarians of Icewind Dale , dangerously turning against Ten - Towns and the dwarves . Drizzt becomes aware of this . Finally Errtu is summoned by a wizard , but he breaks free and flies to Icewind Dale where he takes Crenshinibon from Stumpet , capturing her soul and using her body as a bait to lure Drizzt to him . He raises Cryshal - Tirith and begins to gather creatures . We also learn that the balor has to fight a battle of wills against Crenshinibon to keep control over the artifact . In the last part of the book , Stumpet ' s body leads the companions to the Sea of Moving Ice . There they are attacked by Taer s sent by Crenshinibon , and they beat the creatures only because of the arrival of Revjak and his warriors . Berkthgar and his men , who were also following the companions , arrive as well and eventually the heroes can make the barbarian realise his mistakes . The companions then proceed to their quest and they eventually reach Cryshal - Tirith , where battle with Errtu ' s minions ensues . Regis infiltrates the tower and , with cunning and willpower , he manages to lock Crenshinibon in a box from where its power can ' t escape . In the meantime the others are saved by the arrival of Kierstaad , son of Revjak , wielding Aegis - fang , taken from Bruenor ' s quarters . Errtu ' s prisoner , Wulfgar , can break free and joins battle with his warhammer . The companions can eventually defeat Errtu . The book ends with the companions reunited planning to bring Crenshinibon to Cadderly , looking for a way to destroy the evil artifact .