Giving Nico a little sister was one of the best thing Riordan ever did and they need to be safe because they can have happy tea partys and watch How to Train Your Dragon and prank call there father.
Nico: It's ringing!!!!
Hazel: *Fanning herself* do the thing.
Hades: *Answers the underworld phone* what.
Nico: Is your.... Refrigerator running?
Hades: Nico, I swear to-
Nico: *Hangs up* HE'S ONTO US!
