"Kristoff and Sven take Anna, Elsa, and Olaf to Troll Valley for a special ceremony under the magical Northern Lights. But when Kristoff's friend Little Rock needs help, they set out on a grand adventure"--Back cover.
"Simple text introduces readers to northern lights. Includes information about why they occur, where they can be seen, and how often they color the sky"--Provided by publisher.
This book looks at the aurora borealis or Northern Lights, exploring what they are, what they look like, where they can be seen, and how they are caused.
A boy is surprised when his mother tells him to get up and dressed when she returns from work late one night, but soon they are outside, surrounded by neighbors, watching an amazing display of the northern lights.
