A Theory of Dreaming

**Brought to you by Penguin.

As the aftermath of their first discovery pulls Effy and Preston on a final adventure and brings their haunting love story to its end in this stunning sequel and final book in the duology.**

RETURN TO THE DREAMLIKE WORLD OF THE INSTANTLY BESTSELLING DARK ACADEMIA FANTASY A STUDY IN DROWNING
All stories come to an end.

Effy learned that when she defeated the Fairy King. Even though she may never know exactly what happened at Hiraeth, she is free of her nightmares and is able to pen a thesis with Preston on the beloved national fairytale Angharad. She has finally earned a spot at the literature college, making her the first woman in history to enroll.

But some dreams are dangerous, especially when they come true. The entire university - and soon the entire nation - is waiting for her to fail. With the Fairy King defeated and Myrddin's legacy exposed, Effy can no longer escape into fantasy. Who is she without her stories?

With Effy under threat, Preston is surprised to discover a rage simmering inside him, ringing in his ears like bells. He begins to dream of a palace under the sea, a world where he is king - visions that start to follow him even in waking.

As the war between Llyr and Argant explodes, Effy and Preston find themselves caught in the crossfire: Effy losing her dreams and Preston losing himself in his.

Are dreams ever truly just dreams?
PRAISE FOR A STUDY IN DROWNING

'A love letter to stories - and to everyone silenced of forgotten in their retelling.' ALLISON SAFT

'As merciless as a rising tide and as beguiling as a fairy's bargain.' MELISSA ALBERT

'A spell-binding mix of magic, myth and mystery.' RORY POWER

'Darkly romantic and unsettlingly eerie' ERIN. A CRAIG

'Lyrical, incisive, and tragically beautiful, this book will haunt your dreams.' VAISHNAVI PATEL

'Reid is a singular, extraordinary talent.' SASHA PEYTON-SMITH

'I could read this book again and again - absolute perfection.' COURTNEY GOULD

'Incandescent, tender, and fierce. This is a story that lingers, long after the last word.' REBECCA ROSS

© Ava Reid 2025 (P) Harper Collins Publishers 2025