The Torna Canal was locked when Karlabos appeared. The gatekeeper, Zok, keeps the key in his house in Tule and is reluctant to give the key to Lenna when the princess wants to find her father. After seeing her determination, Zok gives the key to Bartz and urges to them to go.
In the canal, the party encounters a whirlpool, the home of the sealed monster Karlabos. Even after defeating the monster, Faris's companion Syldra could not escape the whirlpool and is lost.