This book follows little Lena's journey to bedtime one night, as she explains to her mother that her dragon, Roary, is scared of the dark. Naturally this means Lena should stay up with Roary to keep her company, patrol their castle, and practice her sword fighting.
Lena's mother wisely encourages her with a bedtime snack and a hug, knowing the whole time that it is not Roary who fears the dark. Once her mom shows her a gift for Roary the dragon, a night light, Lena finds the courage she needs to go to bed that night.
