ellie 's eyes widened in alarm at the mere thought of her using such familiarity with this rakishly handsome gentleman ; justin st just , the twelfth duke of royston , was so top-lofty , so arrogantly haughty as he gave every appearance of looking down the length of his superior nose at the rest of the world , that ellie would never be able to even think of him as a cousin , let alone address him as such .