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-I can feel Sophie's guilt for meeting her grandfather after 10 years murdered, when she has ignored all forms of communication sent to her by him
-It is obvious a humongous amount of research has gone into the making of this book; many facts and information about works of art, the architecture of Paris, and clever anagrams are abundant and do not fail to grasp a reader's interest
-Sophie drives a Smart car
-Although Fache and his company have gotten fooled by Sophie and Robert who have constantly evaded them, he is still very quick-witted in how to improve the situation and attempt to catch them as quickly as possible