The Clockwork Traitor - d'Alembert, Bk 3 Author:E. E. Smith, Stephen Goldin, George Barr Classic space opera adventure series. By law, Princess Edna, heir to the interstellar Empire of Earth, must marry a commoner. But as she travels through her domain, word comes of a mysterious threat to her succession. It's up to Jules and Yvette d'Alembert and their family of circus performers, all agents of the Empire, to uncover this bizarre p... more »lot before it can wreak havoc for all of humanity.« less