Clive Cussler 6 Books Collection Set Zero Hour, Ghost Ship, Pharaoh's Secret

Zero Hour:
A burning helicopter crashes into Sydney Opera House and Kurt Austin is flung headlong into a race to avert global catastrophe . . .Attempting to save a man in a speedboat from a sniper swooping in by helicopter, Kurt Austin lands himself in trouble with the Australian secret service.

Ghost Ship:
When Kurt Austin is injured while rescuing the passengers and crew of a sinking yacht, he wakes up with conflicting memories of what he saw. Did he witness an old friend and her children drown, or was the yacht abandoned when he came aboard?

The Pharaoh's Secret:
On the Mediterranean island of Lampedusa a mysterious ship runs aground, explodes and releases a poisonous black mist. As the island's inhabitants fall where they stand, someone sends a distress call.

Nighthawk:
A doomed aircraft:Flying over the South Pacific, the most technologically advanced spacecraft ever built vanishes into thin air. Both China and Russia would kill for the secrets it contains.

The Rising Sea:
The world's sea levels are rising at an alarming rate. So fast that nobody can explain it.It's up to Kurt and the NUMA team to find out why, before it's too late.Their search for answers sends them racing around the world, from the high-tech streets of Tokyo, to a forbidden secret island.