Prehistordon is another world in the series. Prehistordon is a world of primal age. Where there are many dinosaurs and such, like Velociraptors. We get to see Prehistordon for the first time in Volume 7 when we see a man who looks like an older version of Dawen of House Stallion. Then again later in Volume 7 to confirm our suspicion that is what Dawen of House Stallion who used his Protector mark to tame the Velociraptors.