Liam, 

     Your comments about Christopher's habits of mind and the 
  way his brain seems to make use of visual information to an unusual
  degree are all very perceptive.   Good work.  Your final paragraph is
  fine, but on reading it again it seemed that you were summarizing what
  you had said before rather than coming to a satisfying conclusion.  
  That's not a big criticism though.

  A small point:
 
       Bottom of page 1:  You say the book is presented as a "novel written by
       Christopher himself." Careful, though -- from Christopher's point of view, 
       the book wouldn't be a work of fiction.  It's more like a memoir and/or 
       a detective story in which he was the main character.  So replacing 
       "novel" by "book" would be better.

  Content: 95 (A)

  Mechanics: 95 (A)