The Seventh Daughter — Frewin Jones

Tania is a princess of the Faerie court. But the court now lies in ruins.

Back from the Mortal World of modern London, Tania returns to Faerie with the long-lost Queen Titania. But when they cross between the worlds, they find only devastation. The evil Sorcerer King of Lyonesse is now free of his amber prison, and the Faerie court is falling into decay as he grows in power.

Now it's up to Tania and her true love, Edric, to rescue King Oberon, their only hope of defeating the evil Sorcerer King. And Tania must prepare to fight a war she may not survive, one that will determine whether she must return to the Mortal World--this time for good.