Motherhood, Infertility, and Loss
The Girl on the TrainThis thread traces the characters’ hopes and fears around motherhood, showing how children become sources of love, grief, and control.
increasing
Bearing strength in each event
decreasing
Rachel’s Longing

A Future in the Spare Room
Plans for a child
Rachel imagines a nursery in the couple’s first home and treats motherhood as a central part of the future she and Tom are building.
Infertility as grief
Failed IVF and continued childlessness leave her mourning a child she never had. Social questions and comparisons deepen her isolation and contribute to her drinking.
Megan’s First Child

Libby’s Short Life
Unprepared parenthood
Megan has Libby while living with Mac in an isolated cottage. She remembers the baby affectionately, though she had not planned or prepared for motherhood.
Loss and guilt
Libby dies in the bath while Megan is exhausted. Megan’s grief becomes inseparable from self-blame and years of secrecy.
Anna’s Family

Evie at the Center
A cherished child
Anna’s life revolves around Evie, and she feels profound love and pride in their family. The child gives her a strong sense of purpose after leaving work.
Vulnerability
Anna’s attachment also makes her fearful of Rachel and dependent on Tom’s assurances. Her instinct to protect Evie eventually helps her see that Tom himself may be dangerous.
Megan’s Second Pregnancy

A Different Intention
A chance to choose
Pregnant again, Megan decides she will tell the truth and try to raise the child. Her experience with Libby makes this decision frightening but meaningful.
The uncertainty of fatherhood
Megan cannot be sure whether Scott or Tom is the father. The uncertainty turns her planned disclosure into a danger, particularly when Tom refuses responsibility.
Losses Connected

Children in the Aftermath
Two revelations
Scott learns that Megan was pregnant, while police find Libby’s remains near Holkham. The discoveries connect Megan’s private guilt with the future she had hoped to protect.
Maternal grief widened
Anna recognizes that Evie’s sibling has also been lost. The novel places living children, imagined children, and dead children within the same web of care and sorrow.
During her marriage
Megan’s late teens
2012–13
July 2013
August 2013