Hazel makes an impulsive decision to take the train to Henley-on-Thames, reminiscent of her impulsiveness when taking a book from Hogan’s.
After contacting all three nurses she knew, Imogene Wright does not respond, while Maeve expresses sympathy and Lilly refuses to revisit the past.
Without informing Barnaby or her mother, Hazel leaves for the Piccadilly train station, meeting Harry with a croissant in the park.
Harry wants to accompany Hazel to Henley-on-Thames, and despite acknowledging it’s a bad idea, they go together, discussing the possibility of a nurse named Iris Taber who may have been involved with her sister Flora.
Hazel feels conflicted about her quest potentially causing the loss of her job and upsetting Barnaby, as well as reigniting old feelings upon seeing Harry.
Harry reveals that he once came to find Hazel after their correspondence ended but decided against approaching her after seeing her seemingly happy with another man.
They discuss the history and beauty of Henley-on-Thames, as well as the idea that Flora’s body could be carried by the river they pass by.
Upon reaching Henley-on-Thames, they learn from a local that Imogene Wright, Iris's mother, is known for rescuing animals.
Hazel and Harry locate Iris Muldoon's house, described quaintly as if from a fairy tale, and contemplate whether they would recognize Flora after so many years.
Meeting Iris Taber, Hazel explains her past connection to Imogene Wright, and it is revealed Iris is not Flora, being five years too young.
Iris Taber invites them in, shows recognition of Flora’s story as told by her mother, and offers to let Hazel and Harry speak with her.