When her brother Rolf dares her to catch magical Castle Glower creating a new room, Princess Celie takes the challenge! No one knows the Castle better than she does. But as usual, the Castle has ideas of its own . . .

Celie finds the new room, and inside it is hidden a giant egg. It looks like the Castle wants Celie to care for the egg and whatever creature it hatches! Celie hadn't bargained for a pet, and caring for this one will prove to be especially tricky, once Celie and her siblings realize what else the Castle is hiding.

Don't miss these other stories from New York Times bestselling author Jessica Day George:

The Rose Legacy series
The Rose Legacy

Tuesdays at the Castle series
Tuesdays at the Castle
Wednesdays in the Tower
Thursdays with the Crown
Fridays with the Wizards
Saturdays at Sea

Dragon Slippers series
Dragon Slippers
Dragon Flight
Dragon Spear

The Twelve Dancing Princesses series
Princess of the Midnight Ball
Princess of Glass
Princess of the Silver Woods

Sun and Moon, Ice and Snow

Silver in the Blood