When Prince Blueblood crafts a new magical spell, he is transported to a mystical plane of existence. There, he is informed that he is to become a full-fledged alicorn prince.
He takes it rather well, all things being considered.
Equestria as a whole takes it a small bit less enthusiastically.
Blueblood's Ascension Series:
Blueblood's Ascension; or, Alicorns Just Aren't What They Used to Be
Blueblood's Ascension Part II; or, The Otherworldly Adventure of an Alicorn Prince
Blueblood's Ascension Part III; or, Even Alicorns Have Dreams
Background Ascension; or, Alicorns are "in" This Season (Side Stories)
Recommended Reading Order:
1. Blueblood's Ascension; or, Alicorns Just Aren't What They Used to Be
2. Background Ascension; or, the Heart of an Alicorn
3. Brother's Ascension; or, Alicorn Sales-Ponies Nonpareil
4. Backstory Ascension; or, Apple Alicorns are Anonymous
5. Beauty's Ascension; or, An Alicorn Love Story
6. Blueblood's Ascension Part II; or, The Otherworldly Adventure of an Alicorn Prince
7. Bogus Ascension; or, Alicorns Don't Count for Much Nowadays
8. Badguy Ascension; or, An Alicorn's Crime of Fashion
9. Blank Flank Ascension; or, A Very Alicorn Hearth's Warming Eve
10. Blueblood's Ascension Part III; or, Even Alicorns Have Dreams