The Origin Mystery remains a mystery

That felt short but a very satisfactory ending. This third and final book in the trilogy, for me, is a stand-alone novel too.

It was fast, direct, and in a way placed Dorian in a different light. He represents humanity that doesn't want to talk and instead wants to do.things his own way, for whatever reason. He loves his own race and only cares about the results.

In contrast, there is Kate, who also loves her own race. She fought for her own people, is willing to sacrifice herself, and cares that she doesn't sacrifice anyone else just to get the result.

Though one thing was left unanswered, what is the Origin Mystery. History might repeat itself, with a new group from a new planet, searching for the answer to that question.

A sequel trilogy?