Dalia the dolphin and her best friend, 

Frank the fish, love to explore the ocean.

One day, while swimming near the coral reef,

they found an old sunken ship.

Wow! A real pirate ship!

Do you think there's

treasure inside?

They swam through a broken window and saw a large wooden chest.

Dalia tried to open it, but it was locked!

We need a key!

Just then, Kenny the crab scuttled by.

Looking for something? 

I saw a shiny key near the

seaweed forest!

Dalia and Frank rushed to the seaweed forest.

There, they found Starla the starfish.

Starla, have you

seen a key?

Yes! A little octopus took it.

He went toward the dark cave!