The Crystal Shard: The Icewind Dale Trilogy, Part 1 (Forgotten Realms: The Legend of Drizzt, Book IV) (Bk. 4)

The Crystal Shard - R.A. Salvatore This was the first novel written and continues where Soujourn end. The meeting between the three friends with the barbarian Wulfgar. The forging of Aegis-fang and the first battle against Crenshinibon (a crystal shard) a magical sentient possessed by Kessel a wirzard and we also learn about Ertuu a balor.