Byatt masterfully intertwines the narratives of two sets of lovers from different eras, highlighting how the past can resonate deeply in the present. The Victorian poets' hidden romance, revealed through their letters and poems, becomes a source of both obsession and inspiration for the modern-day scholars, influencing their own developing relationship and academic pursuits.

The novel delves into the multifaceted nature of love, exploring its possessive and liberating aspects. The passionate but secretive love affair between the Victorian poets raises questions about societal expectations, artistic freedom, and the sacrifices demanded by love. Simultaneously, the modern-day scholars grapple with their own burgeoning feelings for each other, mirroring the complexities and uncertainties faced by their literary counterparts.

The novel is structured around a compelling literary mystery that unravels gradually, pulling the reader along with the characters on their quest for answers. The discovery of the hidden correspondence between the poets sparks a thrilling intellectual treasure hunt, complete with academic rivalry, secret societies, and shocking revelations.