In this third story of The Green Horse Trilogy, The evil sorceress Sheraptu and the demons led by Draco are defeated. The black cloud over The Black Mountain lair of the sorceress has turned into a huge hole in the sky with starry space on the other side and planet Earth in plain view. It was a window to another world, ours. Just when King Nicholas thought the battle was over having defeated the sorceress and the demons, an even greater challenge awaits that not only affects his world, but ours too. He must once again work with the magic colored horses and a unicorn to save all.