What Is the Relationship Between a Child and a Child?

I wanted to show this child in edwardian times, but also a child in more modern times at the same time. What is the relationship between them? I mean, oh, well, we're not going to do any spoilers because anid this, but to no and well, he is locked in the attic a hundred years before, as you said. And then a 100 years later when she an, well, almost a hundred years later, when she's locked in her attic, she finds these artifacts belonging to somebody. So she sets about finding who was this person who was in his attic before me. Am, this is post slavery, i maybe, as companions, im accessories