When spike finds a strange book with a dragon on it, he thought it would tell him of his kind, but instead it made a portal to another world opened and sucked spike in. now he is in a different Equestria where it is all out war with his friends that cased it. Now it up to him to stop it and with help of his new friends. Will you join the new house? Or be agents it?

This is me first fic and it bast of a same spike book that was never so i will tack the task!
This will also be a spike x heard fic with some characters and OCS.