Hi there, forgive me if this is already been a topic here but I was wondering if any of the novels have mentioned the Xindi? I did read somewhere that after the Sphere Builder incident that they all went into self exile but I don’t know if that’s true. We all know they eventually join the Federation and one of their species is on the J later on. Would make a good TNG novel. I feel like they would be the right crew to make contact with them again.