Description:

The return of the Riss meant devastation and extinction to the Empire of Linn, and eventually to the entire human race. For alien beings, whose weapons defied destruction, did not know the meaning of compromise. Only the mind of Lord Clane, mutant master of science, might hold the key to defense and ultimate victory. But between the untapping of that secret and space triumph there lay an abyss of super-scienctific mysteries and sub-human treacheries that even THE WIZARD OF LINN might not be able to overcome.