Most everyone in Roarington is excited about the dinosaur discovery in town one more so than the kids in Paisley and Ben's fifth-grade class. Filled with dinosaur fever, they stage a dig in the schoolyard and are even eager for their research assignments, particularly the dinosaur models they get to create. In the evening, Paisley adds the finishing touch to the T. rex she created with Ben: iridescent blue feathers. When the pair presents their project the next day, the other students scoff at their feathered dino. Determined to prove her use of feathers was accurate, she and Ben build a time machine so they can see dinosaurs in person. Combining facts, fantasy, and fiction, this entry in the Paisley Atoms series engages inquisitive minds while offering additional resources and activities. The science isn't always seamlessly integrated, but the illustrated, adventurous story provides a palatable learning platform. Online materials assist adults in incorporating the book into their science curriculum, and a concluding project lets readers build a dinosaur model of their own.