The Winx Club-excluding Musa and Tecna-head to Bloom's home world, Domino, for a celebration with the people of Domino, and her birth parents, Oritel and Marion. But when Bloom discovers that the last and third gem is somewhere in her home world's ocean, she and her friends must leave the celebration immediately. Meanwhile, Flora's selkie-friend-finds the bright red heart-shaped pendant of Eraklyon at the bottom of the ocean of earth, and gives it to Flora. Back at the Domino palace, Flora gives it back to Sky, there by restoring his full memory at last. Sky then finally gives Bloom the pendant. Sky then reveals to a shocked Bloom that Daphne is being held captive by Tritannus and forced to tell all about Sirenix.