Join Harley, her robot dog Sprocket and best friend Cosmo for problem-solving adventures and mysteries in Inventia, a world where science rules and technology grows in the forest and where exploding science projects, giant slugs and runaway robots are all part of A highly illustrated fiction series about a determined young inventor, from award-winning author Vashti Hardy. A highly illustrated fiction series about a determined young inventor, from award-winning author Vashti Hardy.
