The black triangle implies a "crown" or "mountains on Treasure Island ". We broke the tradition of wrap and replaced it with an irregular mountain-shaped one. We emphasize the idea that the book itself is Treasure Island. We print the three elements: "waves", "skeleton" and "boats" with extra quantity of PANTONE 873C golden ink which let the golden color. If you remove the cover, you will see the golden treasure. We chose a picture of an island to be applied at the fore edge. To prevent ink leaking, we split the picture into pieces and implant each piece in order according to the page number. The slight shifts during binding pages into a book have been used intentionally to convey "the foggy view of the island" which is like the existence of Treasure Island: a world between reality and imagination.