The man: Kit Kellan. His mission: kill the king of the galaxy. But it's not easy to take down the most powerful man in the universe. He'll have to outsmart shadowy spies, deadly saboteurs and women as beautiful as they are dangerous. In the end-if he lives to see the day - he'll make a discovery that will change him, and the galaxy, forever.
Used availability for L Ron Hubbard's Seven Steps to the Arbiter
1975 : USA Mass Market Paperback