Intelligent. Kind. Must like children. Passable looks. A man of means. Must make us laugh . . . For Lady Alice Carpenter, these are some of the "musts" on the checklist compiled with her sisters as they husband-hunt among the ton. Yet when she encounters a striking nobleman on her morning ride in Hyde Park, Alice soon tallies another list of first impressions . . . Shallow. Flirtatious. Without seriousness of purpose. Impossible to...