2006 OR: Norwood Press  Limited Numbered Edition, hand signed by Clive Cussler. Numbered editions are numbered 1-98, have custom 3/4 marbled boards in a matching slip-case and are stamped in gold.

2006 OR: Norwood Press  Limited Lettered Edition, hand signed by Clive Cussler. Lettered editions are lettered A-ZZ and come in a fully marbled slip-case with custom boards and end papers, stamped in platinum.  (Lettered editions are by subscription with future placement guaranteed).