Books like Relativity by Antonia Hayes

A 1930s wartime tale of a blind French girl and a German boy whose lives intersect in occupied France, weaving themes of survival, friendship, and the moral choices people make amid World War II.

Sisters Vianne and Isabelle are pulled into the turmoil of World War II, each forging a path of courage and resistance against the Nazi occupation of France.

When a mysterious psychic arrives in 1969 Lower East Side, New York, four siblings learn the day they will die, setting off a life‑long quest that tests fate, choice, family and the search for meaning.

Madeleine Thien’s memoir‑style novel traces an intergenerational Chinese family from Mao’s Cultural Revolution to present‑day Vancouver, exploring how political upheaval reshaped musicians, parents and children across time.

In Ann Patchett’s Commonwealth, an uninvited encounter between Bert Cousins and Franny Keating’s family in Southern California sparks a chain reaction that ties two households together, revealing hidden family secrets and the enduring bonds of siblings across five decades.

When a young fisherman's daughter disappears from a Haitian coastal town, a web of hidden truths and family secrets begins to surface.

Queenie Hennessy, facing a terminal illness, writes a poignant farewell letter that sparks an unexpected journey and reveals hidden truths about her life and relationships.

A bustling Chinese immigrant family’s fortune crashes, forcing them on a cross‑country road trip that tests their bonds and redefines what home means.

It is 1974 when Leni Allbright's impulsive father Ernt decides the family is moving to Alaska. But the Alaskan winter is just as unforgiving as Ernt, and life quickly becomes a struggle for survival.

Hilly finds himself drawn to a niece he meets, leading him to confront his past and family secrets.

Catherine Lowell’s debut follows the last Brontë descendant who, after her father's sudden death, embarks on a mysterious treasure hunt that could reveal a hidden literary estate and long‑held family secrets.

Ruby Wright discovers a tree that opens nine alternative realities and must decide how far she will go for the perfect world.

Elsie Lavender and Homer Hickam (the father of the author) were high school classmates in the West Virginia coalfields, graduating just as the Great Depression began. When Homer asked for her hand, Elsie instead headed to Orlando where she sparked with a dancing actor named Buddy Ebsen (yes, that Buddy Ebsen). But when Buddy headed for New York, Elsie's dreams of a life with him were crushed and eventually she found herself back in the coalfields, married to Homer. Unfulfilled as a miner's wife, Elsie was reminded of her carefree days with Buddy every day because of his unusual wedding gift: an alligator named Albert she raised in the only bathroom in the house. When Albert scared Homer by grabbing his pants, he gave Elsie an ultimatum: "Me or that alligator!" After giving it some thought, Elsie concluded there was only one thing to do: Carry Albert home.

See https://openlibrary.org/works/OL19781733W/Eleanor_Oliphant_Is_Completely_Fine