"If it ever came to the point where there are no options, I could say I need it for an investigation, but I'd rather not. If Umbridge finds out, it could give her all the ammunition she needs to push me out," Percy answered. "Try with Harry, first, and then we see."
Percy put an arm around Cass. "We're not even considering the trustworthy 'friends' you have." He huffed. "Let's not go too fast. Let's deal with Aiden first, okay? We can worry about any eventual other child when we find out that he or she even exists, and Cass, talk to her before next week, yes? You don't want to have this discussion in front of the boy. You might even want to point out your situation with Lestrange. If the boy starts living with us, we'll protect him, but she won't be able to take him and leave him at random. He won't be protected with her. You also have to see if this ... this is a trick. Does she support the Lestranges? Maybe that's a way to get to you, maybe a paternity spell to make sure she isn't lying. These are all things that shouldn't be discussed in front of him."