With her debut novel, At Risk, Stella Rimington introduced us to Liz Carlyle-a smart, impassioned MI5 intelligence officer whose talents and ambitions are counterbalanced by an abiding awareness of her job's moral complexities. In Secret Asset, we are plunged back into her high-stakes, high-tension world. Liz has always been particularly skilled at 'assessing people,' and trusts her instinct that a terrorist cell is at work at an Islamic bookshop. But when her boss, Charles Wetherby, suddenly t