Heres the significance of that Amy Knightly photograph.
Warning: spoilers forThe Jettyepisode one.
Inside the pages of a book, Hannah finds a picture of her father from before she was born.
Oh my god, dad looks so young!
she says, before asking Whos that girl in the photo?.
Embers reaction is one of stunned disbelief.
Thats Amy Knightly, she tells Hannah, the girl who went missing.
The Jetty is available to stream nowon BBC iPlayer.