Finn Connor comes to Mars looking for three missing people.

The investigation carries him through Meridian Concourse, the bustling commercial heart of a colossal surface habitat, a structure roughly six times the size of an aircraft carrier, packed with restaurants, shops, lights and crowds; into Bradian, the warm, humid greenhouse community that helps feed Mars; and finally to Calder Yard, where the shuttles from Earth touch down.

Then the trail goes underground.

Beneath Calder Yard lies a sprawling network of ancient Martian lava tubes. Humans used many of them during the earliest generations of settlement, then abandoned them as better infrastructure was built.

Two centuries later, Finn’s investigation leads him back into those old passages.

That’s where three disappearances separated by years begin to look like one mystery.

The missing people had different professions and different reasons for being there. But Finn discovers something nobody noticed before:

They didn’t disappear in the middle of what they were doing.

They finished their work.

They secured their equipment.

And then they kept going.

Into the old lava tubes.

Three missing people. One destination.

Red Dust Blues follows what Finn finds there across three completed novels: Discovery, Consequence, and Belonging.

The missing people have an answer.

Finding them is only the beginning.