And in general, how do you refer to such a distant generation/family tree level?
Is it different if you are referring to someone else's great-great-grandpa vs your own?
Some details:
- I think it was about a group of scrappy teens against an apocalyptic force
- I think the main character was a girl with red or brown hair, her face on the cover
- I think there was a character named Ty
- I think I bought in from a Scholastic book fair catalog when I was in elementary school (USA). I really liked it and made a shoebox diorama of a scene from the book where the main character attacks some enemies in a bedroom to protect a kid