When the heroes of olympus are saving the day, they find a new demigod-Lyra- a daughter of Hepheastus. See the twist turn of events that happens with Lyra aboard the Argo ||. Disclaimer: this is a fanfiction. I didn't write the series.
I'm not a very good writer so bear with me here. It's all about Jason and Thalia's little sister Caitlyn Grace, who lives in Houston, Texas, and doesn't even know about Jason and Thalia both being alive. As a disclaimer: I don't own any of the Percy Jackson & The Olymians or Heroes of Olympus...