Alone in the world, the Self is on a quest to solve the mystery of their vanished companion, the Singer.
The Self is not an individual organism, but is made of an entire species of water-hating aquatic animals that live off of drifting detritus.
What was at first an unwelcome invasion of tiny animals became a mutualistic relationship that triggered the evolution of the Self from a collective to a hive.
The Singer and the Self discuss the nature of light and how to eat it.
How does a guyot (an underwater mesa) look to a collective intelligence that lives in it?