Day 9

Day 9 seems slow compared to the rest of the series at this point but it does have one key detail in the interactions being when Specimen B-12 says "Richard, there are 7." This could mean a plethora of things, none of which are confirmed at the point of posting. What is more interesting however is that after the day's conclusion there is confirmation form Specimen B-12 himself that the introduction arc concludes with Day 10.