Cindy And The Prince by Debbie Macomber

Unemotional, levelheaded Thorndike Prince was certain his company’s Christmas ball would be an utter bore — until a captivating mystery woman announced that she was Cinderella and he just might be her prince… In a matter of hours, she had toppled his implacable cool and sent his usually unshakable heart reeling. But who was she?

Janitor Cindy Territo had thought donning an elegant gown and crashing the Oakes-Jennings Christmas party would be a lark. She’d never dreamed the handsome but cynical young vice president would melt her heart. There was no way she could tell Thorndike that his Cinderella was the broom-wielding nobody who cleaned his office…