Jack and Annie came to the somewhere where they could smell salt water
and hear the sound of waves.
Having squawked "too late!" Polly was flying in circles above the tree house.
Annie couldn't help going to the ocean.
She took off her raincoat and said to Jack "Let's go in the water!".
To be expected, Jack was going to read the book first.
When he was reaching for the book, Annie snatched it and shoved the book into the backpack
saying "read it on the beach".
Annie started down the ladder and Jack could see Annie wade into the water with her boots on.
Compared to Annie, before going to the water, Jack arranged his stuffs in order.
(I think this scene shows well how different they are from each other.)
The ocean was so clear that Jack could see shells and tiny fishes well.
He saw the tall sailing ship closer than before.
And when Jack looked out at the sea again after a while, the ship seemed even closer.
The closer the ship came, the more Jack could see the ship's flag well.
When he looked at the flag clearly, a chill went through him.
It was a black flag with a skull and crossbones.
Jack and Annie came out of the water and pulled the book from his backpack.
Then for the first time, They read the title of the book.
The title was "Pirates of the Caribbean" !