Voodoo Planet (Unabridged‪)‬

Andrew North was a pen name of Andre Norton, one of the best and most prolific science fiction writers ot the 20th century. She was the first woman to win the Gandalf Grand Master Award from the World Science Fiction Society in 1977, and won the Damon Knight Memorial Grand Master Award from the Science Fiction and Fantasy Writers of America 1983.
Publisher's Weekly called her, "One of the most popular authors of our time," and the
Chicago Tribune said she was a "...superb storyteller whose skill draws the reader completely into a fantastic other world."

In this story, a young spaceman is delighted to be invited to a fantastic vacation planet but soon finds himself in the middle of a battle where the weapons resemble a powerful form of Voodoo.