What will Wednesday bring in the second book in this charming New York Times bestselling middle-grade fantasy series from Jessica Day George? 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.