With the Book of Shadows,Zankou goes after the Nexus again.Re-grouping at Magic School,they manage to cast a spell that takes the Nexus out of Zankou once he gets it.The sisters draw Zankou's focus away from the Nexus and onto themselves.
The Streghe#The power of three ones go to the Island of Valkyries, a mythical place ruled da warrior-maidens, to rescue Leo, but in doing so they unleash the Valkyries on San Francisco! The domanda is, who put Leo there in the first place ?
In order to combat the Titans, Leo gives the girls the ultimate power to vanquish the Titans, recreating them as Greek Goddesses, despite the risk that they could be seduced da their vast new powers.