Grant Blackwood

Jack Ryan Jr. stands alone against powerful enemies in this thrilling novel in Tom Clancy’s #1 New York Times bestselling series.
 
On a mission in Tehran, Jack Ryan, Jr., meets his oldest friend, Seth Gregory. As they part, Seth slips Jack a key, along with a perplexing message. The next day Jack is summoned to an apartment where two men claim Seth has disappeared with funds for a vital intelligence operation....

Even though he's forced leave from the clandestine intelligence group known as The Campus, Jack Ryan Jr., still find himself caught in the cross hairs after an attempt on his life is thwarted when he turns the table on his would-be dispatcher. Convinced that the attack is linked to his recent covert actions, Jack sets out to discover who wants him dead, and why.

CIA Agent Briggs Tanner is fighting bioterrorists in the Alps in this thriller by the #1 New York Times–bestselling author of Tom Clancy Duty and Honor. Dinaric Alps, Bosnian region of Austrian Hungarian Empire, 1918. When four Allied soldiers discover a biological weapon that could devastate the world, they take a vow to keep it from falling into the wrong hands. Ever since, the deadly substance-code-named Kestrel-has been guarded by the descendants...

One Man. Covert agent Briggs Tanner doesn't like coincidences. In his business, they always mean trouble. So when a man is professionally assassinated right in front of him, Tanner wants answers. One Mission. Who pulled the trigger and why? And what is the mystery behind the key the man clutched in his dying hand-the key that Tanner now possesses? One War Without End. His search will lead him on an international trail, city to city, from the...

"Former Army Ranger Tucker Wayne and his war dog Kane are thrust into a global conspiracy that threatens to shake the foundations of American democracy in this second exciting Sigma Force spinoff adventure from New York Times bestselling authors James Rollins and Grant Blackwood. Tucker Wayne's past and his present collide when a former army colleague comes to him for help. She's on the run from brutal assassins hunting her and her son. To keep them...

Recruited by Sigma Force to extract a Russian pharmaceutical magnate, who holds the biological key to a new weapons system, from Siberia, former Army Ranger Tucker Wayne and his military working dog Kane must solve an ancient mystery before the modern world suffers a fate worse than death.

In this adventure in the #1 New York Times bestselling series, husband-and-wife treasure hunters Sam and Remi Fargo must out-pace a self-made millionaire in pursuit of an incredible fortune...
Thousands of years ago, two superpowers of the ancient world went to war, and a treasure of immeasurable value was lost to the shadows of history.
In 1800, while crossing the Pennine Alps with his Grand Reserve Army, Napoleon Bonaparte...

"Luke Daniels is in London, between assignments with the Magellan Billet, when he receives a frantic call from an old friend. Jillian Stein is in trouble. She made a mistake and now her life may be in danger. She needs Luke's help. Immediately. Racing to Belgium Luke quickly finds that she was right. A shadow team of highly-trained operatives are there on the hunt. Intervening, he finds himself embroiled in a war between two determined sides - one...

Em Spartan Gold e Lost Empire, Clive Cussler levou os leitores ao mundo do time do casal Sam e Remi Fargo, em que suas paixões e instinto para caçar tesouros trouxeram descobertas extraordinárias e jornadas perigosas. A próxima aventura do casal, no entanto, pode ser mais ainda aterrorizante. Os Fargos são especialistas em caçar tesouros e não pessoas. Mas, então, um barão do petróleo de Texas os procura com uma pedido pessoal: um investigador...