Mission to Mars - D A Featherling - Bog

The Willoughby twins are swept into the year 2048 as the Time Game places them aboard a spaceship on its way to the Red Planet - Mars. At first, it only appears there's an interesting visit ahead, but they soon discover there are bad guys even in the future. Marcus and Samantha are determined to solve the reason for a mysterious attack and theft, and see justice done for the spaceship's pilot.But will they be able to outwit the criminals before returning to their own time? Or will they have to consider their mission to Mars a failure?