"The Winx and Daphne arrived on the Beach of Calavera Island. They were then met with a Red Fountain ship, and greeted by the Specialists and Paladins offering assistance. Daphne told of a cave called Bajo Mundo, where pirates had hidden a great treasure. As the group walked, they were surprised, even Logan, at the sudden appearance of Eldora, who told them that they wouldn't find the Fantasy Emerald in the real world, and she teleported away once the locals arrived. When Bloom asked about where to find Bajo Mundo Cave, the locals immediately got terrified. A boy told her they would need to see the Wise Woman of Valavera. The Specialists and Paladins stayed to investigate the island further while the Winx went visit the Wise Woman.
The girls regroup with the guys about their findings. Helia pointed out where the lighthouse was, on a lone island off the coast. Timmy had a way to get to it. At Cloud Tower, Selina was annoyed how the Trix still weren't sharing any of their powers with her, making it impossible for her to free Archeron, who was also annoyed at this, and suggested she must do something about it. He instructed Selina to offer the Trix a way to enter the Legendarium World.
On the beach, Timmy had built a raft to get to the island, in which the others balked at. Logan could have gone alone on his Flying Nimbus, but he chose to wait for the others instead. Aisha then materialized wind surfers made of Morphix, which everyone appreciated. While they elect to take the wind surfers, Tecna and Timmy took the raft. They all turned it into a race to see who would get to the island first. Aisha and Nex did a little bonding, much to Roy's displeasure. Musa boarded the Flying Nimbus with Logan for the first time. She envied the Winx and the Specialists rafting on water, and requested Logan to use his Flying Nimbus for water rafting too. Logan permitted and gave Musa the control over the Flying Nimbus. Musa was in the front, enjoying the wind and the waves during rafting, wile Logan was laughing at the Specialists that were being splashed by each other. Logan and Musa came by beside Timmy and Tecna, "Hey Timmy! Watch out in front!" Before Tecna and Timmy realised what he meant, their raft hit a sharp rock, causing it to sink and forcing them to swim the rest of the way, "Have a nice swim!" Logan called, laughing. They all arrive at the base of the island where they found an underwater cave. Stella freaked out when she saw fog rolling in, "It's just a fog, Stella," chided Logan. Jumping into the water, they entered the cave and came up in an underwater cavern. Bloom and the others summoned forth their Mythix Wands, which began to react to the place. Daphne then reminded them what Eldora said earlier, that the Fantasy Emerald could be found in the Legendarium World.
In the cavern, Bloom told the Specialists and Paladins to head back since they were the only ones who could enter the Legendarium. Eldora then teleported in to see them off. However, she gave them all fair warnings not to stay there for too long or they could risk getting trapped there forever before teleporting away. The guys saw the girls off, and told them to hurry back as soon as possible. Musa gave Logan one last kiss in the lips, "I love you, Logan. I will miss you very much, and thanks for the control over the Flying Nimbus just now." Logan smiled and whispered, "I will miss you too. Come back soon, alright? The Flying Nimbus is yours. You can have it if you want it," Musa smiled and the Winx transform into Mythix and enter the Legendarium World. Unlike last time, they found themselves on a ghost pirate ship, the Occulta. They were surprised with the appearance of the Trix. They had no time to wonder how the Trix got there as a fight broke out. As it escalated, both parties became shocked when the zombie pirates of the Occulta emerged.