With the older brother stuck in the hospital with the dreaded feather flu and the twins now busy with weather duty with many pegasus ponies also ailing from the same disease, it is up to Twilight to watch after Rumble, her soon-to-be tutee

Future Chapters
The Little Brother
The Older Brother
The Twins

(Prequel to The Dynamic and Secret Relationship of Twilight Sparkle and Thunderlane)