Ethan is a bright young boy obsessed with physics and astronomy who lives with his mother, Claire. Claire's life is centred on Ethan; she is fiercely protective of her talented, vulnerable son, and of her own feelings. When Ethan falls ill, tied to a tragic event from when he was a baby, Claire's tightly held world is split open.

On the other side of the country, Mark is trying to forget about the events that tore his family apart. Then a sudden and unexpected call home forces him to confront the hole in his life that was once filled with his wife Claire and his son Ethan.

When Ethan secretly intercepts a letter from Mark to Claire, he unleashes long-suppressed forces that – like gravity – pull the three together again, testing the limits of love and forgiveness.

'The race towards the conclusion keeps us guessing, but ultimately, it's the beautifully drawn characters who stay with you long after the final page.' - Australian Women's Weekly

'Hayes has packed a complex story into compelling fiction and Relativity is proof that her star is only beginning to burn.' - Sydney Morning Herald

'Relativity is wonderful, a beautifully written, heartbreaking novel.' - SJ Watson, author of Before I Go to Sleep and Second Life

'A transcendental book that mangers to stay grounded and true in its warmth and pathos.' - Alice Pung, author of Unpolished Gem and Laurinda

'Pulls you into the moment like you've unexpectedly pin-dropped through Antarctic ice . . . Relativity upends expectations and holds you in its thrall as Hayes asks unsettling questions about the frailties of memory and love . . . An Australian debut not to be missed.' - Readings Monthly

'Books like this don't come along that often. Grab it with both hands.' - Marie Claire

'This is a family that the reader can root for. A charming and fresh debut placing a family's secrets in the great expanse of the universe.' - Kirkus

About the Author
Antonia Hayes, who grew up in Sydney and spent her twenties in Paris, lives in San Francisco with her husband and son. Relativity is her first novel.