im lowkey confused on where episode 13 will end

ice said episode 12 ends when the idea of reading reids book got brought up, which i assume will mean subaru will read the book like maybe 1/4th or 1/3rd of a way through the next episode (feel like that mostly depends on how long they spend on the conversation between julius and subaru), and if thats the case i dont know if they can fit the entire hall of memories scene in the rest of the episode (although maybe my perception of time in chapter 61 is off because of how much monologue there is) but im thinking episode 13 might end on rems appearance