In twelve-year-old Giacomo’s Renaissance-inspired world, art is powerful, dangerous, and outlawed. A few artists possess Geniuses, birdlike creatures that are the living embodiment of an artist’s creative spirit. Those caught with one face a punishment akin to death, so when Giacomo discovers he has a Genius, he knows he’s in serious trouble.Luckily, he finds safety in a secret studio where young artists and their Geniuses train in sacred geometry to channel their creative energies as weapons.But when a murderous artist goes after the three Sacred Toolsobjects that would allow him to destroy the world and everyone in his pathGiacomo and his friends must risk their lives to stop him.