It all started with the story of a lost book. There was once a boy who had lent his favorite book to a friend. His friend had never given back the book, and the boy was so attached to it that this made him very sad. I was six years old when I wrote the story and, unfortunately, I have no record of it so I don't know what happened next. But it's thanks to that story that I now know how it all began: a lost book, a lost story. And so I set myself to find them.