Major threat in your worlds

So there's this ancient tree where the first-ever tribe originated. One day, the tribe members all take a different blessing from the tree and go their separate ways.

Fast forward to a few hundred years later, each tribe has made its own kingdoms. One day, while one of the kings is meditating atop an ancient mountain, a strange, humanoid creature lands in front of him and commands him to go and visit the ancient tree. The king obliges, and to his surprise, he sees that other kings are there, too. The strange humanoid then tells the kings to go near the ancient tree, and reach for the cavities facing them. The kings all reach for the cavities, and they pull out four different babies, sleeping peacefully in their cribs. The strange shadow tells the kings to raise these babies with care, for they're going to be the ones fulfilling the prophecy. And so before the kings can ask anything, the shadow disappears.

Fast forward to a few years later, when the babies all come of age at the same night, all the royal oracles see a nightmare which none could translate, they ask permission to act as one and search for someone to decipher the meaning of their nightmares. So they find an old wizard in a swamp just as old, and so the dreams are translated.

And guess what, it's the end times and they're under dire danger. There are four scrolls hidden in each land, and there is but one hero that can save the entire realm. Heh.

Haven't written the rest, but it's gonna be interesting.

/r/worldbuilding Thread