An innocent long-distance correspondence leads to complications in this Regency romance by the New York Times-bestselling author of For My Lady's Heart.   Married to an elderly man, Folie Hamilton finds her lonely days brightened by light-hearted letters from her husband's cousin, Lt. Robert Cambourne, stationed in Calcutta for the British East India Company. Robert calls her his princess, and she dubs him her knight errant. Unbidden love blossoms, yet upon the death of her husband, Robert's last letter shatters her heart with three words: I am married.   Four years later, Robert summons Folie and her stepdaughter to his estate in England. The girl is his ward, so they must go. The man who greets them, however, is nothing like the charming lieutenant of his letters. This Robert is demented. Screaming at ghosts in demonic rage, he is paranoid and frightening. Yet her body longs to caress his perfect features, to hold his tall, angular body, to find the man who once captured her heart . . .   Someone is poisoning him, spinning his brain into madness, of that Robert is sure, but who--and why? Haunted by his dead wife, the one thing his tortured mind understands is that he must keep Folie safe. Folie, with her beautiful expressive eyes, the only warmth in his nightmare world . . .   Nominated for a RITA award, My Sweet Folly is another unforgettable love story filled with passion and suspense from the author of Flowers From the Storm, whose work has been praised by Julia Quinn as "unfailingly brilliant and beautiful."