Princess Sofia had been pretty busy lately—too busy, that is. She had been doing a lot of stuff, and she was really tired.

Sofia was putting on her flying derby clothes, getting ready for flying derby practice, when Amber came in.

"Sofia, I need your help," said her big sister, Princess Amber.

"Sure, Amber," said Sofia, feeling tired. She and Amber went into Amber's bedroom.

"Which tiara do you think will be better to wear at your flying derby practice today?" Amber asked, showing her sister so many tiaras.

Sofia saw Amber's usual signature tiara, and she knew that her sister hadn't worn that in a while. "How about that tiara?" she asked. "You haven't worn that in a long time."

"You're right," said Amber. "Thanks, Sofia."

"No problem," said Sofia, tiredly trudging out of Amber's room.

Sofia's brother, Prince James, saw her coming out of Amber's room, and he and Amber both noticed she didn't look happy.

"Sofia, are you okay?" Amber asked.

"Yes, I'm fine," said Sofia.

"Are you sure?" James asked. "You don't look like you're fine."

Sofia knew it was obvious that she didn't look fine, and she really couldn't lie to her brother and sister. "I guess I'm just a little tired," she said. "I've been having too much to do—helping Amber choose new jewelry, teaching Ruby and Jade archery, horseshoe tossing, dance class..."

"It sounds like you've been pretty busy," said Amber.

"Yeah, you should get some rest right now," said James.

"I can't go to bed now," protested Sofia. "We have to leave for flying derby practice soon, and I promised Prince Hugo I'd show him how to do the double swerve."

"I don't know if we should let you go to practice like this, Sofia," said Amber.

"I have to go to practice," said Sofia. "I have to keep my promise to Prince Hugo."

"Alright, Sofia," said James.