What is the most powerful symbol in the novel Treasure island? Of hope? Of fear? Of death?

There are many powerful symbols in the novel. There is the black spot representing death and the treasure map representing greed, adventure, mystery, hope, fear.....

Ther are many symbols in this novel. The black spot which symbolizes death and danger, treasure map represents greed, voyage, buccaneers, mystery, death, adventure..... and the tattoo on Billy Bones' arms which represents the destardly deeds he has done.