I have a certain fondness for this Cussler novel, sure its missing some of those fun "pretitles" style preludes that tie together seemingly unrelated historical events in an ingenious manner and it's also very politically incorrect (but not as much as PACIFIC VORTEX is). But, this Dirk Pitt adventure (the first published, though Cussler wrote the aforementioned PACIFIC VORTEX first), is a fun ride of a novel and moves along at a fast pace (it's actually one of Cusslers shortest, if not THE shortest). With some very vivid fight scenes and some nice Alistair Maclean-esque plotting (apparently Cussler used the late Scottish writer's work as a template until he found his own style) this Cussler novel really delivers and I made fast work of it reading over a weekend about a year ago.
Starting with the attack on a US airfield in the Greek islands by a biplane and involving smuggling, German fighter aces and the trademark underwater sequences for which Cussler is perhaps best known for (through his non-fiction writings as much as for Dirk Pitt) I can guarantee that this novel will no doubt charm even the harshest of Cusslers critics as long as they take it for what it is - some harmless. Mildly diverting fun.
On a sidenote, all the reviewers who are commenting on the bad writing should really lighten up, this was after all one of Clive Cussler's earliest works :)