Garth Nix

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 away to defeat Rikard, save her sister, and maybe even turn Prince Denholm back into a human being.

"Battling aliens, space pirates, and competitors, Prince Khemri meets a young woman, named Raine, and learns more than he expected about the hidden workings of a vast, intergalactic Empire, and about himself"--

Four youths on the brink of adulthood tap the powers of their animal familiars and embark on a dangerous mission to stop a dark force that threatens their survival.

Everyone is after Arthur Penhaligon including strange pirates, shadowy creatures, and Drowned Wednesday, whose gluttony threatens both her world and Arthur's.

Arthur Penhaligon is supposed to die at a young age, but is saved by a key that is shaped like the minute hand of a clock. The key causes bizarre creatures to come from another realm, bringing with them a plague. A man named Mister Monday will stop at nothing to get the key back. Arthur goes to a mysterious house that only he can see, so that he can learn the truth about himself and the key.

Abhorsen-In-Waiting Lirael and Prince Sameth, a Wallmaker, must confront and bind the evil spirit Oranis before it can destroy all life.

Young Arthur Penhaligon must weigh an offer from Lady Friday that is either a cunning trap for the Rightful Heir or a golden opportunity that he must seize.

Game of Thrones fans will love the New York Times bestselling Abhorsen series. Sabriel, the first installment in the trilogy, launched critically acclaimed author Garth Nix onto the fantasy scene as a rising star. Since childhood, Sabriel has lived outside the walls of the Old Kingdom, away from the power of Free Magic, and away from the Dead who refuse to stay dead. But now her father, the Abhorson, is missing, and Sabriel must cross into that world...

In a savage postnuclear world, four young fugitives attempt to overthrow the bloodthirsty rule of the Overlords with the help of Shade, their mysterious mentor.

Tal and Milla are struggling to make it to the Castle, each on a dangerous mission. For Tal, a Chosen, the Castle is home, for Milla, an Icecarl warrior, the Castle is a strange and mysterious place. Her presence is a threat that the Castle dwellers want to stop...at any cost.