I went to a city where everybody is happy. There, there are lots of people, but any of them are sad. In this city there is a library, where you can read many books which contains really interesting stories. I have lots of friends there and I really enjoy whith them. I know that every time I go there I can start a new life. Now, I am planning to go, why don´t you come?
Espero que te sirva, me lo he inventado, pero contiene todas las palabras que has puesto, incluido el ing en adjetivo.