I was pretty young when I read this. I had read [b:The Zero Stone|7808485|The Zero Stone|Andre Norton|http://photo.goodreads.com/books/1344700585s/7808485.jpg|1171807] and [b:Moon of Three Rings|2957310|Moon of Three Rings|Andre Norton|http://photo.goodreads.com/books/1325034007s/2957310.jpg|2986816] by Andre Norton before this and really loved them. I hated this book and never read another book by Andre Norton... ( )

Blake Walker has been inducted into the worlds spinning operations of Vroom after his unanticipated adventures in the previous book in the series.

Assigned a routine run to check up on a project to seed a deserted world with life, Blake's also instructed to make sure that the twin daughters of Erc Rogan, head of the patrol are safe. What he finds is a nest of sedition and treachery that sees one twin stolen off-world and the other lost on an uncoded level with Blake when their shuttle home was sabotaged!

Despite being almost fifty years old, this is still quite an exciting read and while Marfy and Marva, the twins, are not the focus of the story, they still manage to have a (female) presence in the story that is quite unusual even for Andre Norton for that era. ( )