Book excerpt: After a showdown with the evil emperor Nerezza in the Indian-inspired world of Rachana, the band of young artists and their Geniuses is broken. Giacomo has been captured, his mind under Nerezza's control. Knowing that Nerezza is on the hunt for the Pencil, the third Sacred Tool, the daring Milena, Savino, and Aaminah head to Katunga, an African-inspired empire known for their powerful intellect. There, Aaminah confronts her heritage, making a shocking discovery when she finds out the leader of the Katungans is her father, a man she barely remembers. Meanwhile, the rebel artists must unlock the power behind the Sacred Tools to stop and destroy Nerezza once and for all--but does that mean they have to end Giacomo's life too?Emotions erupt, powers clash, and battles ensue in this thrilling conclusion to the Rebel Geniuses series!