Andrew North was an early pseudonym of Andre Norton's --partly because she wrote too quickly and partly because women were NOT SF authors in the 1960's.
Norton isn't the only woman to have to hide behind a pseudonym (and in fact, Andre Norton is one as well-- Norton's real name is Mary Alice Norton).
Some other day, I'll get to some of those women authors...remind me.
A cool book with a cool scifi cover.
Norton's eighth published book. Her first was in the 1940's but most of the books readers know and love are from the 1950's and 1960's.
Another cool dust jacket cover too.
All three of these books are currently available on my website.