Shannon Hale

"The Princess in Black and her friends are enjoying a day of sun and sea on Princess Sneezewort's royal boat when a real, live mermaid princess emerges from the waves! Eeeeeee! Princess Posy needs their help protecting her very cute sea goats from being eaten by a very greedy kraken. But the princesses and the Goat Avenger quickly realize that fighting underwater can be tough for land dwellers, and only the mermaid Princess Posy can save the day....

Unicorn wants to be as perfect as everyone seems to think he is, so when he embarrasses himself in front of Kitty he is afraid Kitty will no longer want to be friends with a not-so-perfect Unicorn.

"When the goat pasture is plagued with a foul stench, the Princess in Black and her friends must take on a stinky beast"--Provided by publisher.

When a goo monster crashes the science fair, the Princess in Black is on the job, and with the help of the Princess in Blankets, sets out to save the science fair.

Noseholes and elephants! A pet-eating monster interrupts a perfect playdate with Princess Sneezewort . . . but who is that new masked avenger? Princess Magnolia and Princess Sneezewort have plans . . . mysterious plans, like a princess playdate! They dress-up slam! They karaoke jam! They playhouse romp and snack-time stomp! But then a shout from outside Princess Sneezewort's castle interrupts their fun. It's a monster trying to eat someone's kitty!...

Conor, Abeke, Meilin, and Rollan, supported by their spirit animals, follow a lead in the cold North only to arrive in a deceptively beautiful village where everything is not as it seems.

Something is missing from Cassie's life. Her parents don't have much money, she has to share her bedroom (and bed!) with her sisters, and her family never seem to have time for her. To make matters worse, her best friend Vali is always busy with a new friend. When Cassie gets a letter from a magazine sweepstakes with the words "YOU'RE THE WINNER" stamped on the front, she thinks it's the answer to all her problems. She could buy new furniture to replace...

Who says princesses can't wear black? When trouble raises its blue monster head, Princess Magnolia ditches her flouncy dresses and becomes the Princess in Black.
Princess Magnolia is having hot chocolate and scones with Duchess Wigtower when . . . Brring! Brring! The monster alarm! A big blue monster is threatening the goats! Stopping monsters is no job for dainty Princess Magnolia. But luckily Princess Magnolia has a secret —

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The Princess in Black, who knows how to handle all kinds of monsters, meets her match in an adorable kitten bent on annihilation and must figure out what her finicky feline friend wants.

At Ever After High, a boarding school for the sons and daughters of famous fairy-tale characters, students Apple White and Raven Queen face the moment when they must choose whether to follow their destinies, or change them.