One day, Jack found a castle sinking in the ocean.

Curious, Jack decided to explore, hearing an echo in the empty halls.

He saw a ghoul in the castle, but Jack was brave.

Jack decided to wrestle the ghoul to protect his ocean home.

Later, Jack found a treasure chest and tried to fasten it with a seaweed strap.

He saw a gnome in the castle garden, tending to a thistle.

Jack asked the gnome to help him, and together they moved the chest.

Then, they heard a rustle. It was a friendly ghost!

The ghost, gnome, and Jack celebrated their victory with a whistle tune.

After all the bustle, Jack felt tired and decided to rest.

From then on, Jack, the gnome, and the ghost protected the ocean castle.