She will not sit. Guineas are terrible brooders... Incubator was my only option.
David
She will sit but you got to let her pick the nest sight, most likely out in the woods someplace, one of the males will stay near her when she goes broody.
Then it's a toss up between the snakes and the varmints and luck if she hatches or not. It's tough with only one hen.
good luck