Ok I'm just trying to figure out how this girl is related to me, I think I know how, but maybe you people can help me make sure...

OK,
Ruth Augustine - My great grandmother
Janet Eshbach - My grandmother (Ruth's Daughter)
Ted Eshbach - My father (Janet's Son)
Zach (Me) - (Ted's Son)

Janet Eshbach has a brother, Terry Augustine (Ruth's Son). Terry has a daughter by the name of Sarah. What is Sarah's relation to me (Zach)?

I'm thinking second-cousin. Is that correct? Thanks (my family is really confusing)! If you need a better description, I can try another one.

Zach