In "Secret of the Magic Crystals", the hardest achievement (0.7% completed) is called "End Game" and is described by the following sentence:
By the power of the Magic Crystals I was able to bring this Story to a Happy Ending!
After some research on the Internet, I understand this achievement consists in breeding five different level 5 magical horses for the quest to uncover the secret of the magic crystals, one of each type:
- Unicorn: The grace and beauty of this horse is one of a kind.
- Pegasus: The Ancestors of this Colt were unique racehorses.
- Fire Steed: This colts ancestors were fearless and wild by nature.
- Ice Steed: Mountain People Bred this kind of muscular horse.
- Demon Steed: People of forgotten civilizations passed on the secrets of breeding this type of horse.
However, the stable contains only six different slots. And to get a level 5 horse, I need two level 4 horses and one empty slot, which would suggest I need to sell the level 5 horses, based on the pigeonhole principle.
So what is the most efficient way to achieve "End Game" in Secret of the Magic Crystals?