Get to Know Clara - #1 When we first meet her she’s been living in the attic room at the Maitland house since the the children’s mother died about a year ago. She put her own plans to travel on hold for a family who lost their mother - something she can personally relate to having lost her own mother young.
Get to Know Clara - #3As a child she was always losing things and had a fear of getting lost herself. That theme appears a few times in series 7 with Clara lost and shouting including in a scene filmed like flashes in a nightmare as Oswin faces that she is a Dalek and the world she constructed in her head is a dream. The nightmare is her reality.