Bookish Bulbasaur
Bookish Bulbasaur asked Stuart Gibbs:

Are Charlie Thorne and Spy School set in the same universe, Milana and Dante being CIA agents and all? (Obviously, I know the CIA is a real thing, it just has such a significance in the Charlie Thorne series that a crossover would be cool.) Speaking of which, if a crossover WERE to occur, I can imagine Charlie meeting Ben and being like, "PFFFT. You can solve some puny equations? Amateur."

Stuart Gibbs The SS and CT series are very different universes.

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