A New chapter will come soon. I Am the same person who posted it on Fan fiction so it isn't stealing if it was my work. Here is my fan fiction  Stories :The Secret Life of Pets- The Spirit of A Pet (Alternate Ending)
https://www.fanfiction.net/s/12052544/1/The-Secret-Life-of-Pets-The-Spirit-of-A-Pet-Alternate-Ending-