Rebecca is getting used to going to the bathroom in packs. She grabs Chloe and some girl Chloe is copying homework from and they go together. Mentioning that they are going to the bathroom reminds a bunch of boys that they should go too, so the pack will be larger at least till they hit the doors. Rebecca sings - not loudly, because you want to be able to hear a mal creeping up on you, so she does Scarborough Fair, soft and sweet.
They go down the stairs from the library and into the hall where the nearest bathrooms are, and the girls go in the girls' and the boys in the boys'.