Let It GlowBook - 2017
It's almost time for the crystal ceremony, where Grand Pabbie honours the young trolls. But Little Rock needs to earn his tracking crystal before he can join the fun. Can Little Rock's friends help him discover the secret to being a great tracker, and will they make it to the crystal ceremony in time to see the amazing beauty of the Northern Lights?
Publisher: New York, NY :, Golden Books, an imprint of Random House Children's Books, a division of Penguin Random House LLC,, 
Copyright Date: ©2017
Characteristics: 1 volume (unpaged) : colour illustrations ; 29 cm
Alternative Title: Disney Frozen: Northern Lights (Motion picture)