Tecna/Books

Fairy Insider
In Fairy Insider, as it asks questions for the reader, the book reveals trivia information. It says that Tecna draws her power from all that is high-tech, she developed an electronic closet organizer for Stella and she dreams of electronic sheep. Her favorite color is purple, school subjects are Science and Math, stars/movies are futuristic full of robots, aliens, sci-fi and she admires Albert Einstein. As her home is a "Techno Dust Fairyland" a wired realm with no seasons, she has no favorite season. She enjoys spending time with her friends by the pool, yet as it is no good for her circuits they go back inside to watch movies. She has "E=mc²" earrings, space-age android movies on DVD, and a lucky computer chip, yet as she doesn't believe in luck, she calls it her "computer chip of statistical favorability." The book also shows three recipes for "Tecna's Experimental Magical Inks" to write and see hidden messages.

Sirene
In Sirene, Tecna and the Winx console Bloom that woke up from a bad omen. In Andros Undersea Kingdom, Ligea grants Tecna and the other Winx the mermaid form. Tecna along the Winx, they face the Kraken.

Perle
In Perle, Tecna has a important role unfolding the mysteries.

In Gardenia at the Love & Pet, Tecna seeing the poor state of a white seagull, that had just crossed many interdimentional paths to deliver Aisha's birthday party invitation, she comments that Aisha could had phoned them instead seeing that new communications are fast and comfortable.

Along with the other Winx, the girls use Zoomix and travels to Andros with their fairy pets. There the they are greeted by Aisha and after a welcome dinner they take Aisha to a surprise summer party they had prepared for her. Upon hearing Aisha's latest occurrences with the necklace of black pearls, Tecna says that from the scary stories they read that night, that one was far better. Tecna then spends the whole night awake, in her room at Andros, searching about the pearls enigma in her portable computer, giving her dark circles. By sunrise, finding the answer, her exclamation of "BINGO" awoke Chicko that was sleeping in a basket adapted as a pet bed. Tecna then hurries to Bloom's room and drags her to see her discovery about the Acquarioteca and the evidences in an archaeomagic site about the pearls. After seeing how Stella's roses and Milly's paw became black, in a extraordinary reunion in Bloom's bedroom, Tecna raises her hands and propose a visit to the Acquarioteca, adding that their pets would remain in the palace.

The Winx uses Zoomix again, and travels to the Undersea Kingdom, there transforming themselves in their mermaid form (acquired in Sirene book). At the library, after getting the information they wanted, Tecna goes back inside to photograph with her aquatic mini-shot the page of the book Andros Enemies that contained the prophecy and the imagine of Vires as she wanted to show it to Ligea. Using Zoomix again, now in Ligea's palace, Tecna hears the bad news and puts the clues together, revealing to everyone that everything was caused by Vires that escaped her prison, kidnapped the mermaids and left the pearls as a trap. Using Tecna's thermo-molecular analyzer of diffused heat, they find the vicinity of Vires' lair, and in the fight Tecna uses the spell Techno Shock against the witch that dodges it.

In the end, Tecna comments that it was a happy ending of fairy tale, and the book adds that Tecna had learned to believe in fairy tales when she became part of the Winx Club.

Magic Ocean
In Magic Ocean, Tecna went with the Winx to Andros for Aisha's birthday party. With all the Winx, she participated in a bonfire, used a searching spell to find Vires, then Tecna said her only sentence from the book, being "It's her - it's the witch Vires!" recognizing the enemy they were searching. Tecna and the Winx hit Vires using a Magic Convergence.