Tom Clancy's new Jack Ryan thriller, Command Authority, is available to pre-order now. The Teeth of the Tiger is the first Jack Ryan Jr novel by Tom Clancy.Just before Jack Ryan stepped down as US President, he created a secret organisation designed to operate in areas where the CIA and FBI couldn't go - able to use any and all means to neutralise terrorists who threatened America. Now his son, Jack Ryan, Jr, is part of that organisation and he's on the front line when a group of Islamic terrorists backed up by Colombian drug smuggles strike at the heart of American society. With no conventional way to hit back at the shadowy ringleaders, it's left to Jack Ryan Jr to take on the terrorists the only way he knows how . . . Internationally bestselling author Tom Clancy first introduced Jack Ryan Jr in The Teeth of the Tiger, returning to his story in Dead or Alive and Locked On. Threat Vector, the fourth thriller in the gripping series, will be available from Penguin in December 2012.Praise for Tom Clancy:'Incredibly addictive . . . 400 tightly woven, adrenalin-fuelled pages' Daily Mail'Truly riveting, a dazzling read' Sunday Express'Heart-stopping action . . . entertaining and eminently topical' Washington Post'Classic Clancy . . . well-constructed tension and realistic action' Short List'Exhilarating. No other novelist is giving so full a picture of modern conflict' Sunday TimesThirty years ago Tom Clancy was a Maryland insurance broker with a passion for naval history. Years before, he had been an English major at Baltimore's Loyola College and had always dreamed of writing a novel. His first effort, The Hunt for Red October, sold briskly as a result of rave reviews, then catapulted on to the New York Times bestseller list after President Reagan pronounced it 'the perfect yarn'. From that day forward, Clancy established himself as an undisputed master at blending exceptional realism and authenticity, intricate plotting, and razor-sharp suspense. He passed away in October 2013.