A missing heiress is assumed to have fled for love—but Lady Theo finds evidence of coercion, blackmail, and fear. Protecting a young woman hunted by powerful relatives, Theo navigates forged documents, financial threats, and moral compromise to uncover who profits most from her disappearance—and who is willing to kill to reclaim control.

A celebrated botanist collapses after a public lecture, poisoned by rare orchids. Lady Theo uncovers a web of botanical espionage, stolen research, and coded floral warnings. With her spaniel Pip detecting deadly compounds, Theo must unmask “The Apothecary” before scientific ambition claims another life in the name of empire.

A seamstress’s death inside a Mayfair fashion house is dismissed as an accident—until Lady Theo investigates. Hidden ledgers, coded textiles, and foreign intelligence networks emerge beneath silk and respectability. As killers close in during a live opera performance, Theo risks everything to expose a conspiracy woven through London’s most elegant trades.

When a soprano is murdered onstage, Lady Theo uncovers espionage encoded in musical scores. The Royal Opera House becomes a battleground of secret meetings, diplomatic cover, and deadly annotations. Racing against opening night, Theo must decode the music, unmask the killer, and dismantle a network hiding behind velvet curtains.

Trapped by snow at a country house Christmas, Lady Theo faces a murder amid festive cheer and old resentments. As traditions clash with long-buried grudges, she uncovers a crime rooted in inheritance and betrayal. With suspects confined and tempers fraying, Theo must find the truth before the season turns fatal.

A flamboyant alchemist promising transformation leaves death in his wake. Lady Theo investigates fraudulent science, desperate patrons, and dangerous illusions where gold masks poison. As ambition and belief collide, Theo must expose the truth behind the glittering promises—before another victim pays the price for faith in false miracles.

When a young debutante dies in disgrace, society hastily calls it suicide. Lady Theo uncovers a calculated campaign of rumor, pressure, and reputational destruction. Following the trail of social manipulation, she exposes how power and propriety can be weaponized—and how easily innocence is sacrificed to preserve appearances.

A supposedly empty house hides unexplained sounds, sealed rooms, and a tenant no one admits exists. Lady Theo investigates smuggling routes, hidden occupants, and a murder concealed behind superstition. As danger moves frighteningly close to home, Theo learns that the most dangerous ghosts are the living ones.

At a lavish masked ball, anonymity turns lethal. When murder strikes, Lady Theo must identify suspects hidden behind silk, secrets, and false faces. Old enemies resurface, past cases collide, and revenge moves through the crowd unseen. To stop the killer, Theo must strip away every disguise—including her own assumptions.

When her late father’s hidden evidence resurfaces, Lady Theodora Ashcombe is forced to confront a five-year-old murder, a stolen identity, and a criminal network embedded in her own family’s past. As danger closes in on Ashcombe Park, Theo must choose between preserving her father’s reputation—or exposing the truth, whatever the cost.