Koura arrives at the Fountain of Destiny. When he drops the first piece of the tablet into the Fountain, his life force is restored. He then summons the centaur, which fights the Fountain's Guardian of Good, a griffin. Meanwhile, Sinbad and the others escape, rescue Margiana and reach the Fountain. They watch as the centaur kills the griffin with Koura's aid, then Sinbad slays the centaur. Koura drops the second piece into the Fountain, which turns him invisible (the "shield of darkness"). He engages Sinbad in a swordfight. Sinbad is barely able to fend off his invisible foe, but Koura makes a fatal mistake by stepping in the Fountain itself, which reveals his silhouette, enabling Sinbad to kill him. Sinbad then drops in the third piece, and a jewel-encrusted crown rises from the depths. He gives the crown to the Vizier. When the Vizier dons the crown, his mask dissolves, revealing his restored, unscarred face. Their quest completed, Sinbad and his crew journey back to Marabia. When Margiana asks him why he did not take the crown himself, Sinbad explains, "I value freedom. A king is never really free. Why, he's even told who he must marry." The two of them kiss. Haroun, hanging on a rope above, asks Sinbad if he will take him on as a fully fledged seamen now. Sinbad agrees but tells Haroun to make fast with the rope. Haroun replies, "Don't worry Captain, I trust in Allahhhhh--" just as the rope becomes loose, hurtling him downward. The rope becomes taut again leaving Haroun dangling in mid air just short of hitting the deck. Sinbad and the Vizier finish the old Arab saying Haroun started, "--But tie up your camel!" They all laugh as the ship sails away into the sunset.