The Shira Calpurnia series in Warhammer 40,000 runs to 3 books. Below is the full reading order in series sequence, so you know exactly where to start Shira Calpurnia and what to read next.
Original summaries and chronology labels generated from the same catalog powering the atlas.
Matthew Farrer
Newly arrived in the cathedral-fortress system of Hydraphur, Adeptus Arbites officer Shira Calpurnia survives an assassination attempt that drags her into a web of conspiracy among the system's rival power blocs. As she investigates, she learns how tangled justice becomes when faith, trade, and ancient privilege collide. A grounded procedural that opens the Shira Calpurnia trilogy.
667.M41 - 999.M41
era date, medium confidence
Matthew Farrer
Calpurnia is tasked with overseeing a fraught inheritance dispute among a powerful Hydraphur dynasty whose contested will threatens to spill into open bloodshed. What should be a matter of procedure becomes a deadly game of competing claims, hidden agendas, and Imperial bureaucracy weaponized. The second Shira Calpurnia novel leans further into intrigue and courtly menace.
667.M41 - 999.M41
era date, medium confidence
Matthew Farrer
Wracked by self-doubt and out of favour, Shira Calpurnia is sent to a remote void fortress crowded with telepaths to solve the murder of its master astropath. Far from any help and surrounded by minds that distort the truth, she must navigate a claustrophobic warren of secrets to find the killer. The final Shira Calpurnia novel is its tensest and most isolated mystery.
667.M41 - 999.M41
era date, medium confidence