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....

When the bookmobile librarian refuses to lend Stanley the story he wants, he learns the importance of advocating for the book of his choosing, and in doing so teaches the librarian the virtue in allowing everyone to select the stories they enjoy.

Today is Princess Magnolia's birthday party, and she wants everything to be perfect. But just as her guests are arriving ... Brring! Brring! The monster alarm! Princess Magnolia runs to the broom closet, ditches her frilly clothes, and becomes the Princess in Black! She rushes to the goat pasture, defeats the monster, and returns to the castle before her guests discover her secret. But every time Princess Magnolia is about to open her presents, the...

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.

Amaya, Princess of House Amethyst in Gemworld, is sent to mundane Earth to teach her that magic is a privilege, but after Amy has long settled into ordinary middle school life, a Prince of the Realm brings her home to restore her magical destiny.