"I have tentatively concluded that the benefits of telling Renée outweigh the risks. We already use her house as a base of operations, and not having to work around her would be much easier, especially now that we have three people who don't officially exist to hide. She exists - and her official existence is an adult; she can drive us places and so on. She can excuse me and Andi from school, if Charlie morphs her he can be out in public as long as they coordinate and not have to pretend he's not our parent, she can make sure we have enough food in the house - and I guess for Ax we experiment with commercially available forms of hay, there aren't going to be grass clippings in Phoenix so readily available - to sustain extra people. She's flighty but not terrible with secrets. I do think we might want to avoid teaching her specialized vocabulary like 'Yeerk' or 'Escafil' or whatever, because that seems like the easier slip for her to make, but I think we should tell her what's going on. Charlie will be able to convince her that we can't just turn over the issue to the authorities."
Robin, being one of the few people in the house who is officially both alive and in Forks and happening to be nearest the door, answers it.
And she heads for the last known location of a Swan twin.
"Hi, Mom," says Bella, and she goes to shut the front door. "Dad -"
"Mom," says Bella, "I still don't like to be interrupted. And it's more complicated than you know. Dad isn't actually dead. He faked it."
"The short version is, aliens exist, one was possessing him, the others would notice if he just stopped showing up to alien meetings, we killed it but Charlie has to look dead for them not to be tipped off. Other, nicer aliens also exist and gave us powers and there is one of those in the garage."
"Trouble had an alien possessor too but we cut a deal with her and he ran away from home to avoid detection," Bella adds, "and he's here, as is Ethan, they both helped with un-possessing Charlie."
But Andi is already changing, and she stops before describing the consequences of pranking.
"You can also meet the alien in the garage if you would like. Charlie and Trouble and Ethan will corroborate us if Robin doesn't suffice."
"Evil aliens! Less evil aliens! Owls!" exclaims Renée, throwing her hands into the air. "Faked deaths and faked running-away -"