Leo grinned as he entered his favourite class of the day: Engineering. It was an elective offered by the school that Hephaestus encouraged him to go to when he wasn't at Camp Half-Blood. Leo loved tinkering and measuring with things, so naturally, he was in his element. The only thing was, this was a ninth grade class, which meant he was limited to cardboard and wood. The main focus of this term was to create a Projectile Launcher, and he had to find a partner to do it with.