Once upon a time, there was a girl named Ava. She was 16 years old and had lost her mommy and daddy. She had to go and live with her not-so-nice aunt and uncle in a big house near the sea. The house was old and creaky, with big windows that looked out onto the waves.

One day, as Ava explored the house, she found a special room full of special things – old maps, spyglasses, and shiny compasses. They belonged to her family who had disappeared long ago. In the corner, she found a hidden door that led to another world called Plumbago. Everything there was magical and colorful.

In Plumbago, Ava met a funny man named Mr. Plum. He had green skin, a bird’s beak, and feathers all over his body. He could also turn into all sorts of creatures! Together, they went on exciting adventures, flying over the sparkling sea and meeting friendly sea creatures.

But as Ava explored more of Plumbago, she discovered secrets about her family's past. She learned that her family had been protectors of Plumbago, and that they had disappeared because of a powerful enemy who wanted to control the magical realm. Ava knew she had to stop the enemy and save her family.

With the help of Mr. Plum and her courage, Ava faced many challenges and found her family hidden in a secret place. They were alive, but trapped. Together, they defeated the enemy and saved Plumbago.