When the Chamber of Secrets is opened again at the Hogswart School for Witchcraft and Wizardry, second-year student Harry Potter finds himself in danger from a dark power that has once more been released on the school.

Dangerous adventures continue for the djinni Bartimaeus and his master, seventeen-year-old Nathaniel, a powerful magician who is serving as England's minister of information.

Holly, a grey squirrel, and her animal friends have accepted that they will never be wizards' familiars. Though they are each magical, their powers are so offbeat--that no professional magic-worker would choose any of them. So instead of going on adventures, they languish at the Shelter for Rejected Familiars, where they are known as 'shelterlings.' When an old friend appears with a plan for curing the shelterlings' defective magic, everyone is on...

When an alley cat named Aldwyn passes himself off as a magical companion to Jack, a wizard in training, Aldwyn and his fellow "familiars," a blue jay and tree frog, must save the kingdom after the queen of Vastia kidnaps Jack and two others.

Marya Lupu's parents has always believed that her older brother Luka is destined to be a sorcerer and make the family's fortune, so when the day he is tested turns into a disaster, and the Guild declares that he has no magical talent, they find it easierto blame Marya for upsetting the test than admit the truth, and she is sent to the Dragomir Academy, a school for wayward girls--but a school where she finds friendship and ultimately discovers her...

When Charmain is asked to housesit for Great Uncle William, the Royal Wizard of Norland, she is ecstatic to get away from her parents, but finds that his house is much more than it seems.

Princess Anya has a big problem: Duke Rikard, her step-stepfather is an evil wizard who wants to rule the kingdom and has a habit of changing people into frogs, and her older sister Morven, the heir, is a wimp--so with the help of the librarian Gotfried (who turns into an owl when he is upset), and the Royal Dogs, she must find a way to defeat Rikard, save her sister, and maybe even turn Prince Denholm back into a human being.

Queen Cimorene turns to her friends Morwen, Telemain, and Kazul for help when troublesome wizards make their way back into the Enchanted Forest and begin to soak up its magic.

As the warlord Rhita Gawr tries to gather enough power to destroy Avalon, Tamwyn--the heir to the powers of his grandfather, Merlin--and his friends embark on separate quests to try to save their world.

Five children, trapped in a magical world, go on a perilous quest to save the land and find their way home.