Tiaan Liise-Mar is a highly skilled artisan. She works hard to maintain her position as she knows the alternative is the breeding factory. Her mother has worked in the breeding factory in Tiksi most of her life. She also doesn't know who her father is and has no history of her family from his side which is a disadvantage on Santhenar. However, she does have some extraordinary talents. She has a photographic memory and even more rare, if she can remember the mechanical workings of a machine, she can make them move in her mind and tell whether the machine will work and what flaws it has.