After Frankenstein author Mary Shelley died, her family discovered an unsettling object inside her box-desk: her husband’s heart.

After Frankenstein author Mary Shelley died, her family discovered an unsettling object inside her box-desk: her husband’s heart.

The Heart She Never Let Go

Mary Shelley gave the world Frankenstein, one of literature’s most enduring stories about creation, grief, and the terrible refusal to let the dead remain dead. But her own life contained a Gothic image almost as unsettling as anything she imagined: after her death, her family found what were believed to be the remains of Percy Bysshe Shelley’s heart, wrapped in silk and kept among her most intimate relics.

Portrait of Mary Shelley (1797-1851)Richard Rothwell, Wikimedia Commons

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She Was Born Into A Legacy Of Loss

Mary Wollstonecraft Godwin was born in London in 1797, the daughter of feminist writer Mary Wollstonecraft and political philosopher William Godwin. Her mother passed shortly after giving birth, leaving Mary to grow up with a famous absence at the center of her life. Long before Percy Shelley entered her world, love and death were already linked.

Of course, in the beginning, she had no clue just how dark life could be.

File:Mary Wollstonecraft by John Opie (c. 1797).jpgJohn Opie, Wikimedia Commons

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Her Mother’s Grave Became Sacred Ground

Mary grew up deeply aware of her mother’s intellectual legacy. As a teenager, she reportedly spent time at Wollstonecraft’s grave in St Pancras churchyard, a place that became emotionally charged in her young life. It was there, according to later accounts, that her relationship with Percy Shelley took on its first intense romantic force.

Portrait of Mary Wollstoncraf, made during her lifetimeJohn Williamson, Wikimedia Commons

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Percy Shelley Entered As A Radical Dream

Percy Bysshe Shelley was already married when he became involved with Mary. He was brilliant, restless, idealistic, and reckless, drawn to radical politics, poetry, and emotional rebellion. To Mary, he must have seemed like a figure from the world of ideas she had inherited from her parents: dangerous, dazzling, and alive with possibility.

And for love, she was ready to take all the risks.

File:Portrait of Percy Bysshe Shelley by Curran, 1819.jpgAfter Amelia Curran, Wikimedia Commons

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Their Love Began In Scandal

In 1814, Mary and Percy ran away together, accompanied by Mary’s stepsister Claire Clairmont. The elopement shocked society and devastated Mary’s relationship with her father, William Godwin. Their love was not treated as a fairy tale. It began under the shadow of scandal, abandonment, money trouble, and moral outrage.

And sadly, there was only more pain to follow.

1905 print of Percy Bysshe Shelley after page of Women painters of the world, from the time of Caterina Vigri, 1413-1463, to Rosa Bonheur and the present day, by Walter Shaw Sparrow, The Art and Life Library, Hodder & Stoughton, 27 Paternoster Row, LondonAmelia Curran, Wikimedia Commons

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Mary Chose Percy At Enormous Cost

Mary was still a teenager when she tied her life to Percy’s. Choosing him meant leaving behind respectability and security. Their early years together were unstable, marked by travel, debt, pregnancy, grief, and emotional strain. The romance that later looked poetic was, in lived reality, often exhausting and brutal.

Farid S, Pexels (4)Reginald Easton, Wikimedia Commons

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Their Circle Was Brilliant And Dangerous

Mary and Percy moved among some of the most famous literary figures of the age, including Lord Byron. Their world was creative, unconventional, and intense. It produced extraordinary writing, but it also carried emotional chaos. The same atmosphere that inspired art could also destroy peace.

File:Byron 1813 by Phillips.jpgThomas Phillips, Wikimedia Commons

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Frankenstein Was Born From Darkness

In 1816, while staying near Lake Geneva with Percy, Byron, Claire, and John Polidori, Mary began the story that became Frankenstein. The famous ghost-story challenge gave her the opening, but the book’s deeper power came from grief, loneliness, creation, abandonment, and the fear that love could turn monstrous.

Christie's auction scan of title page of Mary Shelley's Frankenstein, first edition 1818Mary Shelley, Wikimedia Commons

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Mary And Percy Married After Another Tragedy

Percy’s first wife, Harriet Westbrook, took her own life in 1816. Shortly afterward, Mary and Percy married. The marriage gave their relationship legal standing, but it could not erase the grief and controversy around them. Their union was always shadowed by earlier wounds and public judgment.

Mary Wollstonecraft Godwin fue una escritora​ dramaturga, ensayista y biógrafa británica​ reconocida principalmente por ser la autora de la novela gótica Frankenstein o el moderno Prometeo, ​ considerada la primera novela de ciencia ficción moderna y que Rodrio555, Wikimedia Commons

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Their Children Brought Joy And Devastation

Mary and Percy had several children, but most did not survive early childhood. Their daughter Clara died in 1818, and their son William died in 1819. Only Percy Florence Shelley lived into adulthood. These losses hollowed Mary out, turning motherhood into one of the deepest sources of both love and suffering in her life.

Portrait of William (Willmouse) ShelleyAmelia Curran, Wikimedia Commons

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Grief Became The Language Of Her Life

After the passing of her children, Mary’s journals and letters carried the weight of repeated mourning. She had already lost her mother, been estranged from her father, endured public condemnation, and watched her family shrink. By the time Percy passed, grief was no stranger to her. It had become part of how she understood the world.

Autograph letter, signed, to Clara Mary Jane Clairmont by Mary Wollstonecraft Shelley. April 27, 1844.  On display at the Huntington Library and Botanical Garden, San Marino, California, USA.Eric Polk, Wikimedia Commons

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Italy Became Their Last Home Together

In 1818, Mary and Percy left England for Italy, where Percy wrote some of his most important works. The years in Italy brought beauty and creativity, but also loneliness, illness, and the loss of their children. Italy gave the Shelleys sunlight and art, but it also became the landscape of Mary’s worst moments.

Posthumous Portrait of Shelley Writing Prometheus Unbound, oil on canvas.  Keats-Shelley Memorial House, Rome, Italy.Joseph Severn, Wikimedia Commons

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Percy’s Final Voyage Changed Everything

On July 8, 1822, Percy Shelley set sail across the Gulf of Spezia after visiting Lord Byron and Leigh Hunt. A storm overtook his boat, and he drowned before he could return to Mary at Lerici. He was not yet 30. Mary was left a widow at 24.

James Henry Leigh Hunt, by Benjamin Robert Haydon (died 1846). See source website for additional information.

This set of images was gathered by User:Dcoetzee from the National Portrait Gallery, London website using a special tool. All images in this batBenjamin Robert Haydon (died 1846), Wikimedia Commons

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Mary Waited For A Husband Who Never Came Back

The horror of Percy’s demise was not only that he drowned. It was that Mary was waiting for him. The delay, the uncertainty, and then the confirmation of his sad fate made the event especially cruel. For a woman already shaped by bereavement, this loss became a defining rupture.

Porträt des romantischen Dichters de:Percy Bysshe Shelley (d 1822). Das Aquarell findet sich im Druck wiedergegeben als Frontispiz in der oben genannten Quelle.Unknown authorUnknown author, Wikimedia Commons

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His Body Was Found Days Later

Percy’s body washed ashore after days in the sea and was identified partly by the books found with him. His drowning quickly became part of Romantic legend, but for Mary it was not legend. It was the sudden destruction of the person around whom much of her adult life had been built.

File:Louis Edouard Fournier - The Funeral of Shelley - Google Art Project.jpgLouis Édouard Fournier, Wikimedia Commons

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The Cremation Became Famous And Haunting

Percy’s remains were cremated on the beach in Italy, in a scene later mythologized through art and biography. Friends including Edward Trelawny, Leigh Hunt, and Byron became associated with the story. The image of the young poet’s body burning by the sea became one of the most Gothic moments in Romantic history.

File:Louis Edouard Fournier - The Funeral of Shelley - Google Art Project.jpgLouis Édouard Fournier, Wikimedia Commons

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The Heart Was Said To Have Survived

According to tradition, Percy’s heart did not burn completely during the cremation. Some later accounts suggest it may have resisted the flames because it was calcified, possibly from illness. Whatever the exact medical explanation, the object was treated as Shelley’s heart and became a relic of grief.

-----Colin McLaughlin, Wikimedia Commons

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Mary Claimed The Relic Of Her Husband

The remains believed to be Percy’s heart eventually came into Mary’s possession. It was an extraordinary, unsettling keepsake, but also strangely fitting for a woman whose imagination had already explored resurrection, bodily remains, and the unbearable refusal to release the dead.

Mary Wollstonecraft Shelley and Percy Bysshe Shelley. Stipple engraving.George J. Stodart / Henry Weekes, Wikimedia Commons

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She Returned To England As A Widow

After the loss of her husband, Mary returned to England with their surviving son, Percy Florence. She was young, widowed, financially vulnerable, and still marked by scandal. Her life became a long effort to protect her son, support herself through writing, and preserve Percy’s literary reputation.

Farid S, Pexels (5)George Romney, Wikimedia Commons, Modified

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She Became The Guardian Of Percy’s Memory

Mary devoted enormous energy to editing and promoting Percy’s work after his death. She prepared editions, guarded his legacy, and tried to make the world see him as the great poet she believed him to be. In doing so, she turned widowhood into a lifelong literary mission.

A draft of Frankenstein showing Percy Bysshe Shelley's edits, additions and emendations in darker ink in his handwriting.Percy Bysshe Shelley, Wikimedia Commons

She Could Not Publicly Tell The Whole Truth

Mary’s preservation of Percy’s reputation required tact. His life had included scandal, political radicalism, unconventional relationships, and emotional complications. To secure his literary afterlife, she often had to shape the story carefully. Her grief became both private devotion and public management.

Percy Bysshe Shelley at the Elan Valley Visitor CentreJeremy Bolwell , Wikimedia Commons

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Her Final Years Were Quieter But Not Empty

Mary’s later years were not as chaotic as her youth. Her son Percy Florence and his wife Jane became important sources of comfort. After years of insecurity, she eventually had more stability, especially after Sir Timothy Shelley’s death improved the family’s financial circumstances.

Grave of Mary Wollstonecraft ShelleyDavid Lally , Wikimedia Commons

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Ill Health Darkened Her Last Chapter

Mary suffered from poor health in her final years. She continued writing and working on her husband’s legacy, but illness increasingly limited her. She passed in 1851 at age 53, leaving behind not only Frankenstein, but also decades of private grief carefully folded into memory.

However, her story wasn't over quite yet. She'd left behind a grisly keepsake for her son to find.

Página de créditos do livro Frankenstein de Mary Shelley, edição em português de 2009, editora Martin Claret, Tradução Roberto Leal FerreiraTúllio F, Wikimedia Commons

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Her Family Opened The Box-Desk A Year Later

A year after Mary’s passing, her son Percy Florence Shelley and his wife Jane opened her box-desk. Inside, they found an intimate archive of mourning: locks of hair from her dead children, a notebook she had shared with Percy, and a copy of his poem Adonaïs.

But that wasn't all.

1821 title page of Adonais by Percy Bysshe ShelleyPercy Bysshe Shelley, Wikimedia Commons

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The Silk Parcel Was Hidden Inside Adonaïs

Inside the copy of Adonaïs, one page had been folded around a silk parcel. Within that parcel were some of Percy’s ashes and what were described as the remains of his heart. The discovery turned Mary’s desk into something like a private shrine to all she had lost.

(See references) «Original caption: ‘So now my summer task is ended, etc.’  This painting was one of those remaining in Eyre Crowe’s possession at his death, and was sold for £5 15s 6d at an auction of his remaining works at Christie’s in London on 18 MarEyre Crowe, Wikimedia Commons

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The Object Revealed How She Grieved

The heart was not just a morbid curiosity. It showed how Mary mourned: privately, intensely, and symbolically. She had spent nearly 30 years carrying Percy’s memory through writing, motherhood, editing, and survival. The silk-wrapped relic made visible what had always been true emotionally. She had never really let him go.

Farid S, Pexels (6)Richard Rothwell, Wikimedia Commons

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Why Mary Shelley’s Keepsake Still Feels So Unsettling

Mary Shelley’s life was defined by the line between love and death. She wrote Frankenstein, lost children, buried friends, survived scandal, and spent decades guarding Percy Shelley’s memory. When her family opened her desk and found the remains believed to be his heart wrapped in silk, they uncovered the most haunting symbol of her devotion: a widow’s grief preserved until the end.

Deutsche Erstausgabe, Max Altmann, Leipzig 1912Woodland987, Wikimedia Commons

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Sources: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13


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