Harlequin Intrigue Series, Books in Order by Year – 2003
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| No. | Author | Title | Year | Approx. $ |
| # 693 | Debra Webb | Undercover Wife | 2003 | $2–6 |
| # 694 | Cassie Miles | The Secret She Keeps | 2003 | $2–5 |
| # 695 | Harper Allen | McQueen’s Heat | 2003 | $2–5 |
| # 696 | Adrianne Lee | Sentenced to Wed | 2003 | $2–5 |
| # 697 | Debra Webb | Her Hidden Truth | 2003 | $2–6 |
| # 698 | Mallory Kane | Heir to Secret Memories | 2003 | $2–5 |
| # 699 | Julie Miller | The Rookie | 2003 | $3–8 |
| # 700 | Charlotte Douglas | Lawman | 2003 | $2–5 |
| # 701 | Debra Webb | Guardian of the Night | 2003 | $2–6 |
| # 702 | Ann Voss Peterson | Claiming His Family | 2003 | $2–6 |
| # 703 | Patricia Rosemoor | Fake I.D. Wife | 2003 | $2–5 |
| # 704 | Delores Fossen | Marching Orders | 2003 | $2–5 |
| # 705 | Susan Kearney | Daddy to the Rescue | 2003 | $2–6 |
| # 706 | Rebecca York | Phantom Lover | 2003 | $3–8 |
| # 707 | Patricia Rosemoor | VIP Protector | 2003 | $2–5 |
| # 708 | Jackie Manning | Tough as Nails | 2003 | $2–5 |
| # 709 | Susan Kearney | Defending the Heiress | 2003 | $2–6 |
| # 710 | Rita Herron | The Cradle Mission | 2003 | $2–6 |
| # 711 | Caroline Burnes | Rider in the Mist | 2003 | $2–5 |
| # 712 | Sylvie Kurtz | Under Lock and Key | 2003 | $3–8 |
| # 713 | Susan Kearney | Saving the Girl Next Door | 2003 | $2–6 |
| # 714 | Joanna Wayne | Attempted Matrimony | 2003 | $2–5 |
| # 715 | Caroline Burnes | Babe in the Woods | 2003 | $2–5 |
| # 716 | B.J. Daniels | The Masked Man | 2003 | $4–10 |
| # 717 | Rebecca York | Intimate Strangers | 2003 | $3–8 |
| # 718 | Debra Webb | Her Secret Alibi | 2003 | $2–6 |
| # 719 | Julie Miller | Kansas City’s Bravest | 2003 | $3–8 |
| # 720 | Lisa Childs | Sarah’s Secrets | 2003 | $2–5 |
| # 721 | Gayle Wilson | Rocky Mountain Maverick | 2003 | $3–8 |
| # 722 | Joyce Sullivan | The Butler’s Daughter | 2003 | $2–5 |
| # 723 | Ann Voss Peterson | Incriminating Passion | 2003 | $2–6 |
| # 724 | Leona Karr | Semiautomatic Marriage | 2003 | $2–5 |
| # 725 | Linda O. Johnston | Special Agent Nanny | 2003 | $2–5 |
| # 726 | Joyce Sullivan | Operation Bassinet | 2003 | $2–5 |
| # 727 | Delores Fossen | Confiscated Conception | 2003 | $2–5 |
| # 728 | Jean Barrett | Cowboy P.I. | 2003 | $2–5 |
| # 729 | Caroline Burnes | Familiar Double | 2003 | $2–5 |
| # 730 | Dani Sinclair | The Firstborn | 2003 | $2–5 |
| # 731 | Judy Christenberry | Randall Renegade | 2003 | $2–5 |
| # 732 | Debra Webb | Keeping Baby Safe | 2003 | $2–6 |
| # 733 | Amy J. Fetzer | Under His Protection | 2003 | $2–5 |
| # 734 | Jessica Andersen | Dr. Bodyguard | 2003 | $2–5 |
| # 735 | Harper Allen | Covert Cowboy | 2003 | $2–5 |
| # 736 | Dani Sinclair | The Second Sister | 2003 | $2–5 |
| # 737 | Amanda Stevens | His Mysterious Ways | 2003 | $2–6 |
| # 738 | Mallory Kane | Bodyguard/Husband | 2003 | $2–5 |
| # 739 | Darlene Scalera | Unmarked Man | 2003 | $2–5 |
| # 740 | Charlotte Douglas | The Christmas Target | 2003 | $2–5 |
| # 741 | Rita Herron | A Warrior’s Mission | 2003 | $2–6 |
| # 742 | Dani Sinclair | The Third Twin | 2003 | $2–5 |
| # 743 | Gayle Wilson | Under Surveillance | 2003 | $3–8 |
| # 744 | B.J. Daniels | Mountain Sheriff | 2003 | $4–10 |
| # 745 | Rebecca York, Ann Voss Peterson & Patricia Rosemoor |
Boys in Blue | 2003 | $3–8 |
| # 746 | Alice Sharpe | For the Sake of Their Baby | 2003 | $2–5 |
Typical collector values are based on common paperback editions in Very Good condition. Exceptional condition, signed copies, or rare international editions may sell for more.