Barnhill, Kelly Regan

Describes the gross qualities of blood, and how it works to benefit a person's health.

Describes how different animals have adapted to living in cave environments, exploring how animals have evolved in order to survive in dark, damp caves around the world.

Explores the ways several kinds of fish and other life-forms have adapted to the deep sea, covering such topics as bioluminescence and hydrothermal vents, and describes how they hunt and what they eat.

"Princess Violet is plain, reckless, and quite possibly too clever for her own good. Particularly when it comes to telling stories. One day she and her best friend, Demetrius, stumble upon a hidden room and find a peculiar book. A forbidden book. It tells a story of an evil being--called the Nybbas--imprisoned in their world. The story cannot be true--not really. But then the whispers start. Violet and Demetrius, along with an ancient, scarred dragon, may hold the key to the Nybbas's triumph . . . or its demise"--Provided by publisher.