@kiwifb
The second page ia is a flashback: it has a dark background, plus you have the decreasing vignettes and the color changes in the corners to indicate the transition. But yeah, you could just switch the two and be fine with that...
Yeah, page 1 and 2 seems to be switched. No wonder it was confusing. And ah I get it now, they went back to the lab through some sort of secret entrance after closing/locking it.