My Trip to Alpha I — Alfred Slote

Traveling by VOYA-CODE, it takes Jack only a few seconds to get to the planet where his aunt lives, six million light years away. Jack has gone to Alpha I to help his aunt move to Earth. But Aunt Katherine is acting very strangely, not like herself at all. And Frank and Ruth Arbo, the couple who manage her fantastically wealthy mining company, seem downright sinister. What on Earth -- or Alpha I -- is going on?