Sequel to "The Violin That Started it All." I would give a summary, but there's going to be a bunch of spoilers in it. So...no. The only reason why Annabeth and Silena are listed as one of the characters is because part of the story is in both of their POV, and part of it is in Percy's/Nico's POV. (Mostly Percy's POV)
Percy Jackson and the Olympians - Rated: M - English - Angst/Romance - Chapters: 43 - Words: 80,623 - Reviews: 75 - Favs: 93 - Follows: 103 - Updated: 7/24/2018 - Published: 12/20/2014 - [Percy J., Nico A.] Annabeth C., Silena B. - Complete