"The style of the second part is clearly different from that of part 1. Le retour de Cromwell Stone has a dark, grand style. The menacing landscapes, using black gridlines, the great survey pictures - I have written the story in a way that I could make such drawings. Furthermore, I have placed a certain division of time in the narrative structure. I have used white pages to indicate the present of the story. White pages with pictures in black frames refer to the time before that and the black pages refer to the period preceding that again. Looking back I think have pushed this style too far. The strip is too grey, too little transparent."

"I consider Le triangle rouge to be a reaction to this second part of Cromwell Stone. Le triangle rouge has a more simple construction in comparison to the complicated story of Le retour de Cromwell Stone. Le triangle rouge is light, while Le retour de Cromwell Stone is dark, too dark actually."