 One of Rogers's novels, "Dark Fires" sold two million copies in its first three months of release, and, by 1975, "Publishers Weekly" had reported that the "Avon originals" had sold a combined 8 million copies.The following year over 150 historical romance novels, many of them paperback originals, were published, selling over 40 million copies.Unlike Woodiwiss, Rogers's novels featured couples who travelled the world, usually were separated for a time, and had multiple partners within the book.