New York art expert Colin Grant is sent to Vienna and bid on a priceless Old Master on behalf of a Texan millionaire. No sooner has Grant landed in Austria than his seemingly simple assignment turns into a nightmare, as he finds himself at the center of a conspiracy to unleash a wave of international terrorism.

Vanessa March's husband, Lewis, is meant to be on a business trip in Stockholm - so why does he briefly appear in newsreel footage of a fire at a circus in Vienna, with his arm around another woman? Vanessa flies to Austria to find her husband, inadvertently becoming involved in a mystery that spans three countries...and the famous dancing stallions of the Spanish Riding School. The moonlight flooded the meadow, blanching all colours to its own ghostly silver. The pines were very black.

Chuck Kelso is an idealist. When he steals a top-secret NATO memorandum, he only intends to leak it to the press; but it is soon in the hands of a Russian agent, a man who has spent nine years quietly working himself into the fabric of Washington society. Within hours it has reached the KGB, and the CIA’s top man in Moscow has had his cover blown. For British agent Tony Lawton, hunting down the Russian operative—the "agent in place"—is a welcome challenge. But for Chuck’s brother, the journalist Tom Kelso, and his beautiful wife, Thea, the affair has unleashed a very special terror.

Under the Mediterranean sun, a drama begins in a café in Málaga. For Ian Ferrier, an employee of the United States Space Agency on holiday to visit his old friend Jeff Reid, it means the startling discovery that Reid is not just a wine exporter, but rather engaged in smuggling communist defectors to the West. Events take a turn for the worse when Ferrier, a stranger to the deadly world of espionage, must take sole charge of a high-ranking KGB agent. Alone in an frighteningly alien landscape, he can afford no mistakes when choosing whom to trust …

Adam Deveril, the new Viscount Lynton and a hero at Salamanca, returns from the Peninsula War to find his family on the brink of ruin and the broad acres of his ancestral home mortgaged to the hilt. It is Lord Oversley, father of Adam's first love, who tactfully introduces him to Mr Jonathan Chaleigh, a city man of apparently unlimited wealth with no social ambitions for himself, but with his eyes firmly fixed on a suitable match for his one and only daughter.

Irina Kusak’s recently divorced husband, Jiri Hrádek, is a high-ranking official in the Czechoslovakian secret police: cruel, ambitious, utterly ruthless. So when he turns a blind eye to her defection to the West, she is uneasy. Aided in her escape by a group of friends, including David Mennery, an American with whom she once had a passionate affair, Irina begins to feel herself truly free. But soon their journey becomes a nightmare. It becomes clear that Hrádek only allowed Irina to defect in order to bait a trap for her father.

Miles from anywhere, the isolated mansion Darracott Place is presided over by the irascible Lord Darracott. The recent drowning of his eldest son has done nothing to improve his temper. For now he must send for the unknown offspring of the uncle whom the family are never permitted to mention. Yet none of that beleaguered family are prepared for the arrival of the weaver's brat and heir apparent.

In the unbearable heat of another sultry Washington, D.C., summer, a serial killer is on the loose. Dr. Tess Court, one of the capital’s most successful psychiatrists, wants nothing to do with the case—until the police convince her to lend a hand to the lead investigator, legendary ladies’ man Detective Ben Paris. Scarred by his family’s history, Ben has even less use for shrinks than Tess has for him—but the forces of animal magnetism and a shared desire to catch the demented criminal known as “The Priest” inexorably erode the walls they’ve built.

Linda Martin understands what is to be lonely: her parents died when she was young, and she was raised in an orphanage. When she is hired as a governess to the orphaned young Philippe, Comte de Valmy, Linda finds a kindred spirit in the lonely little boy. But Philippe is the heir to a vast estate in Savoy, and his dangerously handsome uncle may be willing to kill to ensure that Philippe never inherits it.

The Honourable Christopher Fancot, on leave from the diplomatic service in the summer of 1817, is startled to find his entrancing but incorrigibly extravagant mother on the brink of financial and social ruin - and more than alarmed to find that his twin, Evelyn, has disappeared without trace. Christopher - Kit - is forced into an outrageous masquerade by the tangled affairs of his wayward family: his rigid uncle, Lord Brumby; the surprisingly wily Sir Bonamy Ripple; the formidable old Lady Stavely and Evelyn's betrothed, Cressy.