So you want to be a wizard: Nita and Kit visit an alternate Manhattan where sentient taxis prowl the streets, but they attract the attention of a dark power there, and then, forced to reach out for help, accidentally summon a white hole that returns to their own world with them. Deep wizardry: Nita and Kit aid a beached wounded whale wizard and find themselves faced with danger on a cosmic scale. High wizardry: Nita's younger sister, Dairine, stumbles into a sorcerous adventure of her own via a computer that has a software version of the book on wizardry, and more than enough power to get a neophyte started.