Thesis and Believes of Flow

A small chapter of a school textbook has been recovered from the apartment of Dr. Mars Italus, the writer of the book.
It differes no much from the original textbook, however it does have lines underlined by red markers and detected as redacted information. This may be use to someone who wishes to learn more of Flow and the world's Magic, and know what the Tenebris Noctis are like.