Family d'Alembert Books in Order

Hundreds of thousands of visitors have vanished from the resort moon Vesa. Circus aerialists and imperial agents Jules and Yvette d'Alembert investigate a baffling conspiracy, facing threats that force them to separate during their dangerous mission.

A conspiracy threatens the vast Empire of Earth, defeating the efforts of its secret service. Circus performers Jules and Yvette d'Alembert leave the spotlight for covert work, using their unusual abilities as the Empire's hidden weapon.

A senior imperial security officer disappears carrying knowledge of Jules and Yvette d'Alembert's secret identities. The agents must find her before that information reaches their enemies and compromises the circus that conceals their work for the Empire.

As suitors gather to compete for the royal heiress's hand, Jules and Yvette d'Alembert investigate a conspiracy against the ruling dynasty. A concealed traitor and a threat near the princess put the Empire's succession in danger.

A series of suspicious deaths among imperial nobles sends Jules and Yvette d'Alembert against a far-reaching conspiracy. Their investigation pits the powerful secret agents against Lady A, a ruthless adversary whose plans threaten the galactic Empire.

An isolated religious planet begins preparing for holy war under the influence of evangelist Tresa Clunard. Imperial agents Yvette and Pias investigate the sudden militancy, seeking to protect an interstellar civilization from a threat rooted in fanaticism.

Prisoners are escaping from Gastonia, a supposedly inescapable world reserved for the Empire's worst traitors. The d'Alemberts infiltrate the prison planet to investigate a wider conspiracy, knowing failure could leave them trapped there alongside their enemies.

The head of imperial security is implicated in treason, while impostors posing as d'Alembert agents lure colleagues to their deaths. The family's investigation reaches deep space as Etienne separately works to clear the accused leader's name.

An alien invasion devastates the distant colony of Omicron, forcing Jules and Yvette into a temporary alliance with Lady A. Investigating alongside their dangerous enemy could uncover a threat capable of triggering war beyond the Empire.

A newly discovered plot on Newforest reveals that the conspiracy facing the Empire extends farther than expected. The d'Alemberts pursue its mysterious commander as Yvette confronts unsettling questions about the enemy's relationship to imperial power.