Children of the north, huh

Too long; didn’t read— apparently as Alexander the great was conquering the world he came across 22 kingdoms of the Far East that were the most vile, disgusting people on the planet. Cannibals, ravenous people that were like beasts. Drinking animal blood, eating human afterbirth, etc. Alexander forced them all to a secret place in the north and prayed to God who moved some mountains to enclose all the people. Apparently they’re all going to be released to wreak havoc in the world during the end times, right before the AC comes into power.