The beam was a stream of light that passed through Thornleigh every night along with the song. It had started in May[1] and the beam could be felt too.[2] The beam was what was waking up the dark-light demonic squid[3] and made the angular gyri in Night Speakers' brains bigger.[4]



  1. Night Raiders, Chapter 3
  2. Night Speakers, Chapter 28
  3. Night Speakers, Chapter 34
  4. Night Speakers, Chapter 37
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