<b>A New York Times Bestseller</b><P> Nora Roberts offers two unique tales about passion that transcends time. Stranded in the present, 23rd-century time traveler Caleb Hornblower is more concerned about leaving behind Liberty Stone in <I>Time Was</I>. In <I>Time Change</I>, his cynical brother, Jacob, follows him into the past and is captivated by Liberty's spitfire sister, Sunny. <P> Available only in Paperback Bestsellers 4.