PatH, I have found numerous red herrings, every since someone mentioned there could be some. Before that I was running around in circles trying to connect everything and everyone.
Remember at the time Agnes mentions to Sophie about the mermaid shows she went to as a child,(pg.165) Sophie is thinking she told Elgin that story on their way to Capri. NO WHERE in her statement or any where else, does the narrator imply that Elgin in the ONLY person she shared that with. Sophie has no reason to suspect Ely would have told Agnes because she has only known Agnes for 3 yrs, and Ely has been gone for 5 yrs. I have been suspecting Agnes is a cult member as far back as when Sophie visited her dorm and said she had dark circles under her eyes and was thinner than the picture of her on the wall (like Ely when he stayed up all night reading the books on the cult and did a strict diet.) So....I think hmmm, just maybe Agnes and Ely have met in the Tetkratys and Ely could have told Agnes about Sophie's mermaid shows. At this point I had already been suspecting Ely as a bad guy, but I needed more proof. When Ely sent the card pertaining to the date of Sophie sleeping with Elgin and he left for the cult scorned, I connected Agnes and Ely together wanting to do harm to Sophie, beause the day Agnes mentioned the mermaid shows is the day she took Sophie swimming and put her in danger. At first I thought Agnes slipped up and mentioned the mermaid shows, but then I decided she was toying with Sophie's mind enjoying the fact poor little Sophie would never suspect her the one person she has been so protective of. I thought oh you little minx, and that is when I saw Agnes is more like Iusta, sly and unsuspecting to those near to them.
winsummm...I don't think Carol wrote the book as a Classic final either, but Carol said herself she used vaious books on classics as references to write this book. I chose to concentrate on four stories that Carol mentions in NV, The Littel Mermaid, Poseidon, Ovid's Metamorphoses and Iusta, and I tried to connect what is the same in each of them. Struggling to possess POWER kept leaping out at me.