Magic's return

The world change constantly. Something it does so fast, other times slowly. When cracks in the very fabric of space appeared all over Earth's sky it changed instantly.

The cracks themselves had no real effect. They stayed where they were for an hour and then closed off as if nothing had ever happened. The real game changer was what they spewed out.

Mana, an wondrous energy capable- when harnessed expertly- of changing reality itself and...

Monsters.

Evil, twisted creatures thirsty of human blood.