Elizabeth and Joyce travel to Antwerp to see the diamond dealer, Franco, who admits that, a month earlier, Douglas contacted him about a deal. But he has not heard from him since. No one else has tried to sell him £20 million worth of diamonds.

Back at Coopers Chase, Elizabeth discusses the case with Stephen and Bogdan. Bogdan suggests that if Poppy is still alive, she will watch Elizabeth, waiting for her to find the diamonds. As Elizabeth considers where Douglas could have hidden them, she notices the logo on Bogdan’s T-shirt reversed in the mirror.

At Martin’s house, Sue breaks the news of Andrade’s impending arrival. Lance is assigned to guard the house. Martin hopes that Elizabeth will save his life by finding the diamonds before Andrade arrives.

The next day, Elizabeth and Joyce return to Fairhaven train station. Elizabeth reveals that she has worked out why Douglas wanted her to have the locket. The mirror inside indicated she should reverse the digits of the locker number. Douglas provided a similar clue when he referred to a dead-letter drop in East Berlin, which took place in West Berlin. The mistake was deliberate.

Inside locker 135, they find a bag containing around thirty diamonds and a letter.