Who is Tamsin Lark?

Tamsin Lark is the main character and narrator of the novel. Orphaned since she was young with no memories of her real parents, Tamsin was taken in by Nash and learned the ways of the Hollower and the world dog magic. However, unlike Cabell, Tamsin was not born with the One Vision and had to rely on a Hand of Glory to see what others could naturally. This led to her feeling inferior compared to the other Hollowers, though she was able to use her perfect memory to keep up with Nash and Cabell. It is later revealed that Tamsin had a near death experience with the White Lady, but was saved by an unknown voice. Whether this is related to the curse Nash mentions at the end of the novel or not is left open for a future book.