I'll Never Leave Your Side (a percy jackson fanfic)

My new characters, Siena Biancchi, her twin sister Renata, and Siena's best friend Xander Chase (no relation to Annabeth Chase) embark on an adventure across the globe. They've been outcasted. Explosions happen whenever they're around. And worst of all, these weird monster things keep trying to kill them. Siena's got...