[books] and season 3

I SPEED read the books in 2024 after season 2 finale. I’m having a hard time remembering key details about Juliette’s return to silo 18 and how it all ends. I don’t necessary want to go back and re read all three. Would I be best served by just going back and reading dust? Or should I re read shift and dust?
The newest trailer has me questioning my memory (like I’m the one on the forgetting pills) and I want to make sure once I watch season 3 I have a solid idea about where the tv show and the books differentiate.