Jan Darzek Books in Order

Two women disappear during the second day of a new matter-transmission service, prompting the company to hire private detective Jan Darzek. His investigation into the missing travelers opens an extraterrestrial mystery with consequences extending far beyond Earth.

A stranger offers detective Jan Darzek a million dollars to investigate an invisible mental weapon destroying planets in the Primores galaxy. He must identify the force known as the Dark before its devastation reaches the remaining inhabited worlds.

An invisible force destroys inhabited worlds while Jan Darzek, Effie, and a doctor from Earth are sent to the trading planet Montura. A supreme computer’s unexplained orders leave them searching for a connection that could halt the advancing catastrophe.

Jan Darzek investigates a supposedly primitive planet suspected of possessing a prohibited death ray after earlier agents disappear. On Kamm, where living creatures are deaf, understanding an unfamiliar culture and its forms of communication becomes vital to his mission.

A planet becomes a sun, a distant inhabitant suffers impossible radiation injuries, and another world receives an extinction threat. Jan Darzek searches for the connection, racing to determine whether a blackmailer can carry out these seemingly impossible attacks.