Jessamine Fareview has no idea she's been stolen from her family. Still trapped beneath the sleeping spell cast by her mother, she is carried across Kaloma by a stranger known only as the Master-a man whose power is as unsettling as his obsession with the Fareviews. But he makes one mistake: he leaves a witness.

Johesha Malinor, captain of the Jast Royal Guard, abandons his post the moment he sees Jessamine taken. Tracking her to the Master's secluded manor, he infiltrates the household only to find himself ensnared in its enchantments. When he discovers a way to wake Jessamine, he does, unwittingly triggering the Master's darkest plan.

Awake but trapped inside a maze of illusions, Jessamine must rely on Johesha to navigate the shifting dangers of the manor. As they work together to unravel the Master's magic, an unexpected bond forms between them: tender but forbidden.

When a narrow chance to escape finally appears, they seize it, only to be torn apart by a new spell designed to tear them apart forever. Now separated, hunted, and running out of time, Jessamine and Johesha must each confront the Master's obsession, and find a way to end the nightmare threatening their family. They'll have to bring the Master to his knees and defy the magic determined to keep them apart.

In the Shadow of an Obsession is the sweeping, heart-pounding finale to the Fareview sisters saga. Where every secret comes to light, every bond is tested, and love becomes the most dangerous magic of all.