Again, I feel one picture is insufficient, so I shall put in two.
This episode is a continuation of episode 11. Sara's life has now gotten much worse because of Miss Minchin's "compassion".
You can obtain this episode from your standard anime torrent indexing sites.
We are around 1/4 of the way through the series. Starting from here on out, the anime will begin deviating from the novel slightly (the novel glosses over this period a bit, which the anime puts more detail on how Sara has to deal with her new life). However, the way they have done it gives other characters (Lavinia comes to mind on this one) a lot more character development than the novel originally had.