The sun was shining softly through the windows of Celestia's bedchamber and a slight breeze was ruffling the purple velvet curtains. The gentle tinkling of magic sounded and a blue aura closed the windows before the blankets on the bed shifted and a weakly waving rainbow mane poked out the top. Celestia groggily lifted her head for a second before she slumped back down onto her pillows. She noticed Luna standing a few feet away from the door and raised her eyebrow.

"Luna? What are you doing in here?" She turned a weary eye towards the sunshine "And why is the sun up so early?"

Luna smiled softly and took a step towards Celestia's bed "It is almost midday."

Celestia's eyes widened and she lurched forward "What?!" She tried to jump out of bed but found herself tangled up in the covers as she fell to the floor with a thud. Luna cringed slightly as Celestia tried to speak with her mouth stuck to the floor. "Why didn't anypony wake me?! Who raised the sun?!"

Luna chuckled and put a hoof on Celestia's shoulder "Peace, Sister. It was I who raised the sun and I who ordered you not to be disturbed."

Celestia turned to Luna with an incredulous expression "You?" Luna nodded and Celestia stood "Why did you do that?"

Luna chuckled again "You may be able to maintain your stoicism around our subjects, Tia, but I have known you long enough to know when you are ill. Please lie down, you look as though you will fall."

Celestia tried to glare at Luna, but instead let out a sigh and flopped back down onto her bed. She turned towards Luna and weakly frowned. "How did you know I was sick?"

Luna laughed "When was the last time you gazed in a mirror? You look like a hydra sat on you." She began to use her magic to adjust Celestia's pillows when Celestia forced herself to sit up straight and look Luna square in the face.

"I can take care of myself, you know." Celestia said with a frown.

Luna nodded as she covered Celestia with her blanket "Of course you can."

Celestia gave in and slowly sunk into her pillows with a soft groan. Luna stepped closer and Celestia raised her eyebrow "What about my royal duties?"

Luna smiled warmly and shook her head "Worry not, I have arranged all of your appointments to be rescheduled and I am going to run Open Court until next Friday."

Celestia closed her eyes and leaned her head back "I should be better before then. I'll most likely be well enough tomorrow."

Luna raised a hoof "Nay, Sister. I am not allowing you to do anything until you have completely recovered." she smiled gently "After all, 'Rest is the best medicine,' as they say."

Celestia chuckled "I think you mean 'Laughter,' Lulu."

Luna rolled her eyes "Laughter, rest, I cannot keep track of all these modern colloquialisms. Besides, according to Pinkie Pie, laughter is the best anything."

Celestia weakly nodded "Very true." She smiled at Luna "Do you remember when we were foals and we'd get sick?"

Luna laughed "Of course I do, Mother would dote on us endlessly and Father would pretend to be angry that we were not being productive."

Celestia smiled "And he'd always talk about getting us into shape, but only after we were all better." Celestia coughed weakly and turned to Luna "Do you think I could have something to eat?"

Luna nodded "Of course, Tia. I will fetch you some warm soup posthaste." She walked towards the door and turned to Celestia "Would you like some lemon tea?"

Celestia nodded "Yes please. Oh, and could you close the curtains for me? The light is really bright."

Luna smiled and gently closed the curtains with her magic before she opened the door. She turned back to Celestia and chuckled softly when she saw Celestia had already fallen asleep.

Luna nodded approvingly and whispered "Rest well, dear Sister" as the door silently closed behind her.