It's the start of summer! But when Maddie and Jack decide that they, along with Jazz and Danny, go visit her sister's family, it's gonna be even tougher for Danny and his cousins to keep their respective secrets. Will Danny, Ty and Abby discover each other's secrets? Will the villains of Danny Phantom and Grossology team up? And how does Dani Phantom fit into all of this?
Crossover - Danny Phantom & Grossology - Rated: K+ - English - Humor/Family - Chapters: 6 - Words: 18,220 - Reviews: 13 - Favs: 20 - Follows: 18 - Updated: 4/24/2018 - Published: 4/15/2018 - Danny F., Jazz F., Abby Archer, Ty Archer