Vires

Vires is a witch from Andros. She was first mentioned in Perle.

Appearance
Vires has lilac complexion and long pink wavy hair. She wears a long purple cloak filled with strings of dark pearls, from which under it comes out her "venomous" pink tentacles. Above her head, Vires has a "crown with two long horns" from which sticks out "slimy snail antennas."

In Magic Ocean, it says that her tentacles were decorations.

Books
In Perle, it expound that long ago, before the story began with the Winx, when one of the kings of the sea was Eidonte, Vires was a little girl when she discovered that her half-sister Ligea would be the heir of the kingdom. Vires escaped the palace and as she possessed magical power, she concluded a spell of Oblivion that made Ligea forget her existence. Considering the throne usurped from birth, Vires kept an old and deep anger wanting to conquer the absolute power and planned attentively every detail of her plan. Linked with the Obscure Force prophecy, were Andros would no longer be, Vires hides in the waves of time, trapped in her prison, called Deleterium, were she could not do harm. Andros Enemies book says that: no being really knows her, under or above the saltwater, neither her plan is known; Her name evoke force and power, her magic is incommensurate and unknown; Vires is nothing without her pearls, they are the symbol, the key and the seal of her obscure power.

Years later, now in the story timeline, Vires escapes Deleterium, kidnaps mermaids, in particular Tala, Kalia and Nesia, and transform them into pearls, capturing their vital energy.

A day before Aisha's birthday, Vires leaves a clue to get her into her trap, a shell casket holding within a necklace of black pearls. The Winx discovers her plains in the Acquarioteca reading from the Enemies of Andros book and together with Ligea, they prepare for a possible war. The vicinity of Vires's lair is then found by Tecna's thermo-molecular analyzer of diffused heat and Bloom finds the precise location. With tritons on guard, Vires comes out of her lair, a huge shell supported above the sand were the fissure emanates a "sinister" violet light creating a "strange contrast" with the gloomy depths in the seabed. The witch murmured a command and around her materializes a host of armed Tritons to their teeth. Vires tells about her pass, yet when Ligea tries to get in good terms with her sister, Vires starts the attack, whipping Ligea with with one of her venomous tentacles. With a Morfix shield, Aisha shelters the queen that exclaims to attack, and her army launches against that of the witch. Vires' Tritons grown every minute more, multiplying by a sorcery. Vires "fast and skillful" dodge all the Winx's spells and tackles many mermaids with her tentacles.

In the end, when Bloom's spell starts following Vires, she grabs her niece Tressa to use as a shield, yet because of Ligea's sacrifice to save them both, the prophecy is broken and Vires is transformed into a mollusk, being back-washed by a sudden whirlwind of water and disappearing.

In Magic Ocean CD's book, it diverged a lot from Perle, in the past, Vires was the guardian of a magic necklace, but transformed into a witch, she tried to use the power of the black pearls to conquer our kingdom. Ligea defeated her, recovering the necklace and Vires escaped into the deepest depths. The Winx using a searching spell, finds her in the abyss of the Kingdom of the Sea (Andros), in a "dark valley inhabited by terrible tritons." The Winx use Magic Convergence spell, defeat her, yet Vires escapes once again.

Trivia

 * In Perle, it was not specified what happened in the past between her escape from the palace and her imprisonment in Deleterium.
 * In Magic Ocean, Vires had only three sentences: "Winx! I'll destroy you!", "You've defeated me!", and "But I swear I'll be back!"