In addition, drawings made for his upcoming solo show at Tokyo Opera City Art Gallery are included in this book as a separate booklet, which makes you feel as if we are looking at
secret sketch book full of Sawa's ideas for a new work.
Sandwiched among the dramatic vignettes of the story, Greenwood pauses to pepper the
book with historical sidebars about the «
secret code» language used by those who helped shuttle slaves north to safety; a biographical
sketch of Harriet Tubman, known as «Moses» to those along the route; a brief history of storytelling among southern slaves; a scientific explanation for the «swamp ghosts» many slaves encountered along their escape routes; an inside look at some of the methods used to hide slaves from capture; and much, much more.