"This book introduces readers to the barn owl's life that starts when the sun goes down. The life cycle, diet, and habitat of this twilight raptor are explained in clear, easy-to-read text with bright photos and infographics. QR Codes in the books give readers access to book-specific resources to further their learning"--

Calpurnia and her grandfather rescue a barn owl from the river and, with the help of Dr. Pritzker, dead mice, and some detective work, nurse it back to health.