The Astral Fortress

From Author Wars - https://authorwars.com/books/the-astral-fortress-7081.html

Overview:

Title: The Astral Fortress
Author: William Rotsler Sharman DiVono
Year: 1982
Type: Novels
Series: Tom Swift [2]
Number in Series: 5

Variant Titles:

1982. The Astral Fortress