Luffy had always remembered his elder brothers promise. he was going to make a book with all his adventures and make it into a story. At first, Luffy was not interested at all, considering he didn't like reading, but as he got older he found himself appreciating books. Perhaps it was the recruitment of Nico Robin, some 2 years ago, or he just got more mature (like that could ever happen, as Nami would so kindly say).
So, one day, as the crew were going down to Fishman Island, Luffy asked for help.

' Robin!' Luffy yelled, tumbling into the library and aquarium, said lady turned, slightly surprised as she had been so engrossed in her book. She stared at the straw hat wearing captain, a D grin on his face.
'What do you need, Luffy-san?' The boys face softened slightly and the archaeologist was, once agin, surprised.
'I want you to check this book!' Trying not to show her confusement as the boy smashed a large pile of written papers on her coffee table. Luffy then plopped onto the plush couch beside her and stared at her intently. The demon child looked over the papers and saw the they were fairly well written except they were wonky, like a childs.
'Okay then. Although, why do you have a story with you?' Robin asked, smiling as she read over the first lines.
One boy was the son of a world known criminal, one the same as the first and the last, the son of a noble. But, as they grew up, they learnt to be brothers.
'Thanks Robin! And, it was my big bro Sabo's story when he was 10.' Luffy's face faded from a grin to a warm, but small, smile as he seemed to remember something Robin did not know.
Robin blinked, she was aware that Portgas. D Ace was his older brother, but she knew and met a Sabo during the two years... Could they be the same? Or different people with the same name?
'Okay, I'll call you when I'm done.' Robin said faintly, already interested in the book.
'Thank you!'

-...-

As the crew walked into the dining room for dinner, Robin was looking positively delighted, and Nami noticed.
'Robin? Did you read something good?' She said almost teasingly, smiling wider when Robin nodded.
Luffy brightened, grinning widely as he stared at Robin.
'Robin, did you finish? Did you?'
'Mm, I did. It was a very good story. But, you need a name for a story, and an author.'
'Hmmm... Then, the author will be ASL and the name... hm...'
'How about we ask for some help? Please read the first page, everyone.' Robin passed the book to her right, Nami.
As they all read it, some were smiling and some thinking up names, until Usopp proposed a name.
'How about Dream?'

-...-

A blond haired man laughed, clutching his stomach as he held a black leather book, Dream imprinted on the front in silver, to the last page.
'G-good job, Robin! Luffy!'
On the page, were the words, hand written:
Hello Sab- IM GONNA PUNCH YO sorry. Luffy says hi.
And those words were for the whole world to see, written before published.

END