The drowning girl of the title is India Morgan Phelps, or Imp to her friends. She’s schizophrenic and no longer trusts her own mind or memories.

The book is described as “incisive, beautiful, and as perfectly crafted as a puzzle box” but I just found it rambling and boring. There is too much meta content about what Imp will write about, and how she should write about it, and how she is going about it the wrong way. I kept waiting for something of interest to actually happen, and getting distracted and bored reading it, so I gave up.