The Heroes' Call

Humanity is on the brink of extinction- and the disastrous Trost could be the tipping block that ends them all. They know this must not happen. And so the gods send some of the best damn time-traveling, alternate dimension reinforcements the world has ever seen. Along with a few tests. After all, Humanity truly might not be worth saving. Post BoO Percabeth/Solangelo/Ermika/Revetra