Please describe Jonas's volunteer job at the House of the Old in Chapter 4.

In Chapter 4 of the book, Jonas is doing some of his
volunteer work at the house of the old. All that we really see him do in this chapter is
to give the old people their baths.

Jonas comes into the
home and the lady tells him it is useful to have volunteers today because they are
behind schedule.  Then she says that he should go and join Fiona and Asher who are both
helping in the bathing room.  Jonas goes and helps a woman named Larissa with her
bath.