The Shadow (Nico di Angelo FanFiction)

*Takes place mostly in the Mark of Athena* I don't own all of these characters, Rick Riordan owns most of them. In this book, I don't use ALL of Rick Riordan's ideas, I use my own as well. I've almost completely re-written it. Oh, and her name is 'Lie-ruh' not 'Leer-uh'. A/N I HAVE CHANGED THE AGES OF EVERYONE IN THIS BOOK. PERCY AND ANNABETH ARE 19 AND NICO IS 16 IN THIS BOOK!