Stuck In Between Worlds of Chaos

As far as Jonas has remembered, he was stuck in a world without colors and direction where there is no sense of up and down, and left or right sides. Alone observing the other bizarre worlds through the countless windows of the castle he was in.He can see everything that was happening in those worlds but no matter how he tries he cannot go to those worlds so he was stuck there in the world without colors where there was only a door, a tree , a spring and a vast library on the center of the castle. On the other side of the door is a castle like where he sees in other worlds there was other people buzzing around.He can hear them and see them but they could not see him and he cannot touch them or anything in there. But he likes to be there than in his world where he could only see scenes and pictures of those other worlds.And as he observed this world was consist of people that has an image like him or according to the books was they were humans.So without anything to do he always goes around listening to their conversations but one day a girl his age changed everything in his life. She was the first or the only person who saw him and talked to him, and little did he know, that was the start of the adventure that will change destinies of worlds.