A spacecraft appears on approach to Earth.
It identifies itself as Odyssey One.
Its crew are human. Its systems are recognisable. Its mission data appears genuine.
There is just one problem.
No one on Earth has any record of it ever being launched.
As NASA scrambles to verify the impossible, the returning crew face an even more disturbing reality: the world waiting for them is not quite the world they remember.
Names are missing. Histories do not match. And the deeper the investigation goes, the harder it becomes to explain where Odyssey One has really been.
Somewhere between the crew's memories and Earth's records lies the truth.
But uncovering it may change far more than anyone expects.
Odyssey One is a tense, character-driven science-fiction mystery about exploration, identity, family and a spacecraft that should not exist.