Valtor's Shadow

While the Winx are trying to stop the attack on the Sun by the Star Troll, the Specialists have to deal with the two dark star giants that are about to attack Gardenia. Meanwhile, Obscurum goes to Lumenia to claim his throne, and traps Dorana in a magic cage. Valtor tries to take possession of Bloom's Cosmix power by threatening to destroy her world, family, and friends, So Bloom decides to give up her Cosmix powers to him. Valtor tries to absorb the powers, but is rejected by the power itself and is sent to the dimension of limbo. Twinkly arrive at Gardenia with her min artificial core made by Orion, and Sky uses it to blast one of the star giants into pieces, though there is still another star giant left, and no other mini cores. On the Sun, the Winx battle and defeat the Star Troll, which releases the energy sparkles of the Sun's core into the air. The Winx capture the sparkles and hold it in position until Bloom comes back with her Cosmix powers and helps them to keep it at bay.