After freeing Hink, you go up to the 3rd floor to meet Tally N Rally. You can see they're mopping some sort of.. black liquid off the floor. Tally: "Ugh, this is the third ink spill this week.." Rally: "Hey, at least we didn't end up as the kids.." She shudders. "Just imagine us in those little stall things becoming slowly like those kids.. at least we won't be the literal embodiment of our characters.." Tally: "I wonder why you decided to apply us for an orphanage in the first place, Pina."