The Mirror of the Sea is the one-hundred and fourth issue of the Winx Club Comic Series.
In the seas of Italy, a storm is raging in and the fishermen are in a panic - a large sea monster appears. Earth's ocean gate guardian, Phylla leads her fellow selkies to help the fishermen. She directs the selkies to keep the sea monster at bay as she teleports the fishermen and their boat to safety.
The next day, Phylla and the selkies alert the Winx of the danger brewing in the seas. Phylla informs the girls that the fishermen believe the sea monsters to be Scylla and Charybdis, mythological monsters of Greek legends who terrorized sailors. Stella mistakens the names to be fashion designers when Bloom corrects her. She then complains about saving two large "sardines" when the sun is covered by none other than the monster who had scared the fishermen.
The monster displays its fearsome size then it proceeds to dive into the waters, generating a large whirlpool, sucking in the Winx's Odysea Explorer. The Winx then transform into their Harmonix forms and dive into the waters to chase after the sea monster. Before swimming further, Aisha makes sure the Odysea does not sink.
The girls locate the sea monster; Tecna restrains it with her globotronic wall but the monster escapes. Bloom tries to attack it but her hand is grabbed by another, smaller sea monster. Phylla yells at it to release Bloom and it does so without making a fuss. The girls notice that the sea monsters mean no harm, and so, Musa decides to use her flute to understand them.
She relates the monsters' stories to the girls: the two sea monsters' names' are Scylla and Charybdis. They were once people, lovers in fact; they lived in a small village along the coast and their wedding day was approaching. A witch named Circe was also in love with Charybdis whom he had rejected. Circe's response to the rejection was not good - she casted a spell on the two of them which transformed them to the monsters they are today, and they have since lived in exile in the ocean.
Bloom asks Musa why Charybdis attacked the fishermen; Musa explains that he did not mean to but due his large size, he generates large vortexes. In conclusion, they are not evil at all but their appearances do frighten the fishermen. The Winx decide to help them and Musa tells them that they would appreciate it. However, in order to break the spell, the mirror used to cast the spell is needed.
Scylla and Charybdis shows them the location of the mirror which is on their home island. The Winx arrive at the island and only see a lighthouse. Since it was centuries ago, the location of Circe's home is uncertain. Phylla warns the girls of an evil presence, and informs them that this lighthouse is actually built atop of ancient ruins; Stella concludes that the ancient ruins is possibly Circe's home.
The Winx enter the lighthouse to search for the mirror. Inside, the lighthouse gives off a spooky and negative feeling. Tecna's detector locates a presence in the cellar, they enter with Stella using her light magic to brighten the room. The girls find a statue and what appears to be holding a mirror. Tecna senses something wrong in the statue. Aisha checks the mirror and it is the one they are looking for; she takes it but this awakens Circe from her sleep.
Flora, Musa, Tecna and Aisha battle the witch but they are no match for her; she easily takes care of them. With four down, Circe looks for the other two: Bloom and Stella. They are outside, up on the lighthouse and ready to remove the spell that was placed on Scylla and Charybdis who arrive just in time. Bloom holds up the mirror and Stella energizes the mirror with light, stripping the spell from the two lovers and transforming Circe into a sea creature...
With the spell removed, the two lovers embrace each other and thank the Winx. Bloom wonders where Circe had gone and Stella picks up Circe, the hermit crab and taunts her about being harmless. That is until she pinches Stella's fingers with her claws which leads the others to laugh.
- "Reverse the rotation of the vortex!!" - Used by Aisha to return the Odysea Explorer to the surface of the ocean.
- Globotronic Wall - Used by Tecna to capture Charybdis only for the sea serpent to break out of it.
- Blade of the Dragon - Almost used by Bloom to attack Charybdis only to be stopped by Scylla.
- Harmony Flute - Used by Musa to learn about the sea monsters.
- Green Growth - Used by Flora to protect her and Musa from Circe's attack, but it fails.
- "Through the power of light, the mirror of the sea reflects what really is in your hearts!!!" - Used by Stella with the Mirror of the Sea to remove the spell on Charybdis and Scylla, and turn Circe into a hermit crab.
- Winx Club
- This is the first appearance of Harmonix in the comics.
- Phylla's name is spelt "Philla".