Callum Grant knows a lot about the solar system. But he doesn't know what it would be like to see a Martian sunset with his own eyes. Until one day Callum sets off on an adventure unlike any other...

Did you know that the sky on Mars is red? Callum Grant does - and he knows a whole lot more about the solar system too. But he doesn't know what it would be like to see a Martian sunset with his own eyes. Until one day Callum sets off on an adventure unlike any other... An uplifting story about the power of imagination, with full colour illustrations on every page.