In two classic tales of Regency-era romance from New York Times bestselling author Mary Balogh, the vagaries of love have a way of challenging the most convenient arrangements.   THE TEMPORARY WIFE Miss Charity Duncan has no illusions about Lord Anthony Earheart’s proposal. The arrogant aristocrat has made it painfully clear what he wants: a wife who will enrage the father he despises and then disappear from his life. In exchange, Charity’s family will receive the money they desperately need. But after Charity agrees to this mockery of matrimony, she soon discovers a startling fact: She has fallen for Anthony, and breaking their marriage vows may also break her heart.   A PROMISE OF SPRING Grace Howard has every reason to be devoted to Sir Peregrine Lampman. After all, the gallant gentleman rescued her from poverty by making her his bride. Even more nobly, he did not withdraw his affection after she confessed to a youthful folly that had compromised her virtue. But Grace did not tell the whole truth about the handsome lord who betrayed her—and now the one thing she’s kept from Perry threatens to destroy her last chance at true love.