Manehattan behind the curtains

Twilight has some strange nightmares that bother her for a long time, but when they are more frequently, she can't deny hiding something from her friends.
That's when the map thinks is the best time for a quest, in no other place than Manehattan, the city of lights, with the highest structures in the land, full of shops, restaurants and much more.
What else does this big city represent? This is what the two mares find out in an adventure that is longer then they expected. And in the end, the truth will come to light.
My little pony Friendship is magic is owned by Hasbro. I just come up with the idea for this book for fun and to relax. I hope you like it :D