Lucy Greenwell

We know that somehow she managed to be full-term pregnant and give birth and then pretend to find the baby without anyone really noticing.

But there's so much we don't know.

What brought her to the verge that October morning?

What was happening in Jennifer's life to make this feel like the only way out?

There's another thing too, a reason why it feels so important to understand Jess's birth mother better.

Because Jess's DNA results reveal something else.

There's another match, right there at the top, on the first page of results.

But this match is harder to understand.

It's not clear who it is.

This person, who apparently shares some of Jess's DNA, is labelled only as close family.

It's not a number she recognises.

When she picks up the call, it's from someone who says she's a DNA researcher.

They're calling from a long-running ITV show called Long Lost Family.

She explains that it's a bit complicated.

She's hoping that Jess can help fill in some of the gaps.

The researcher is silent for a moment.

She wasn't expecting this.

And she carefully shares a few fragments of what she knows with Jess.

Foundling was reported by me, Lucy Greenwell.

It was written by me and by Katie Gunning, who was also the series producer.