Signed Limited Edition of the first Dirk Pitt novel originally issued in paperback by Bantam. The first hardcover issued simultaneously with a Limited Trade Edition. This edition limited to 300 signed by Clive Cussler and illustrator David Monette and issued with a dust jacket and in a slipcase, the trade edition limited to 2500 without slipcase. The line weave dark blue slipcase shows the title and a facsimile signature of Clive Cussler.