Diane Duane

Thirteen-year-old Nita, tormented by a gang of bullies because she won't fight back, finds the help she needs in a library book on wizardry which guides her into another dimension.

Teenage wizard Nita travels to other universes to find a cure for her mother who has brain cancer.

Sent on vacation to her aunt's home in Ireland, teenage wizard Nita becomes entangled in a magic battle to save the country from the ghosts of its past.

Nita, Kit and all the other young wizards are planning and practicing for a planetwide wizardry competition--but spells can go awry, unexpected dangers await, and the wizards must discover what secrets lie within themselves.

Nita and Kit rejoin forces when a strange darkness of the mind overcomes the older wizards, stealing away their power, and forcing the younger wizards to go to war to save the world.

In an increasingly wired and computer-friendly world, massive multiplayer online games have become the ultimate form of entertainment. And the most popular gaming universe of all is Omnitopia, created by genius programmer Dev Logan. For millions of people around the world, Omnitopia is an obsession, a passionate pastime, almost a way of life. But there's a secret to Omnitopia, one that Dev would give his life to protect-the game isn't just a program...