| year of publication | ISBN | author(s) | title |
|---|
| 1999 | 978-0-373-00000-5 | Barbara Boswell | Fortune's Children - Book 16: a Fortune's Children Wedding (Desire) |
| 1979 | 978-0-373-00001-2 | Harlequin | Harlequin Anniversary 1949-79 |
| 1975 | 978-0-373-00004-3 | The Heart Cannot FOrget; Ward of Lucifer; A Home For Joy (Omnibus 4) |
| 1977 | 978-0-373-00014-2 | Violet Winspear | Bride's Dilemma, Tender is the Tyrant, Dangerouus Delight |
| 1949 | 978-0-373-00020-3 | Flame Vine (The Loves of a Dancing Girl) (Vintage Harlequin, #20) |
| 2014 | 978-0-373-00022-7 | Once a Cowboy |
| 2008 | 978-0-373-00024-1 | Cathy Gillen Thacker | A Baby in the Bunkhouse |
| 2009 | 978-0-373-00026-5 | stella bagwell | cowboy to the rescue |
| 1950 | 978-0-373-00027-2 | Kiss Your Elbow (Vintage Harlequin, #27) |
| '' | 978-0-373-00034-0 | Mobtown Clipper |
| 1974 | 978-0-373-00047-0 | When the Clouds Part (Harlequin Presents, 47) |
| 1978 | 978-0-373-00074-6 | Anne Mather | Leopard in the Snow |
| 1951 | 978-0-373-00135-4 | Lay Her Among the Lilies (Vintage Harlequin, #135) |
| 978-0-373-00138-5 | Satan Took a Bride |
| 978-0-373-00146-0 | Violet Winspear | The child of Judas |
| 1977 | 978-0-373-00200-9 | Show Me |
| 2012 | 978-0-373-00204-7 | Delphine Dryden | The Theory of Attraction |
| '' | 978-0-373-00205-4 | Fiona Lowe | Boomerang Bride |
| 2013 | 978-0-373-00206-1 | Christi Barth | Planning for Love (Aisle Bound) |
| '' | 978-0-373-00207-8 | Alison Kent | Holiday Kisses |
| '' | 978-0-373-00208-5 | Lauren Dane | Goddess with a Blade |
| 2013 | 978-0-373-00209-2 | Sheryl Nantus | Blood of the Pride |
| '' | 978-0-373-00210-8 | Kaylea Cross | Darkest Caress |
| '' | 978-0-373-00212-2 | Fiona Lowe | Boomerang Bride |
| 978-0-373-00213-9 | Fatal Deception |
| 2013 | 978-0-373-00214-6 | Marie Force | Fatal Mistake (The Fatal Series) |
| '' | 978-0-373-00215-3 | Sheryl Nantus | Claws Bared (Blood of the Pride) |
| '' | 978-0-373-00216-0 | Cáit Donnelly | Now You See It |
| 2013 | 978-0-373-00219-1 | Natalie J. Damschroder | Fight or Flight |
| 2014 | 978-0-373-00221-4 | Marie Force | Fatal Affair |
| '' | 978-0-373-00222-1 | '' | Fatal Justice |
| '' | 978-0-373-00223-8 | '' | Fatal Consequences: Fatal Destiny |
| 2013 | 978-0-373-00224-5 | Fiona Lowe | Saved by the Bride (Wedding Fever (Carina)) |
| '' | 978-0-373-00225-2 | Shannon Stacey | Love a Little Sideways (The Kowalskis) |
| '' | 978-0-373-00226-9 | Cynthia Justlin | Edge of Light |
| 2014 | 978-0-373-00228-3 | Shannon Stacey | Taken with You (Kowalskis) |
| 2014 | 978-0-373-00229-0 | Shannon Stacey | Falling for Max (Kowalskis) |
| 2013 | 978-0-373-00230-6 | Cathy Perkins | The Professor |
| '' | 978-0-373-00232-0 | Sheryl Nantus | Battle Scars (Blood of the Pride) |
| 2014 | 978-0-373-00233-7 | Marie Force | Fatal Jeopardy |
| '' | 978-0-373-00236-8 | Kaylea Cross | Deadly Descent (Bagram Special Ops Series) |
| '' | 978-0-373-00238-2 | W. Soliman | Risky Business (The Hunter Files) |
| '' | 978-0-373-00239-9 | Natalie J. Damschroder | Acceptable Risks |
| 2014 | 978-0-373-00244-3 | Anne Marie Becker | Deadly Bonds (The Mindhunters) |
| '' | 978-0-373-00245-0 | Marie Force | Fatal Flaw |
| '' | 978-0-373-00246-7 | '' | Fatal Deception |
| '' | 978-0-373-00250-4 | Jody Wallace | Witch Interrupted |
| '' | 978-0-373-00251-1 | Kathleen Collins | Death's Daughter |
| 2014 | 978-0-373-00253-5 | Anne Marie Becker | Dark Deeds |
| '' | 978-0-373-00254-2 | Anna Richland | First To Burn |
| '' | 978-0-373-00255-9 | A.J. Larrieu | Twisted Miracles (The Shadowminds) |
| '' | 978-0-373-00256-6 | Eleri Stone | Reaper's Touch |
| 2015 | 978-0-373-00257-3 | Marie Force | Fatal Affair: Book One of the Fatal Series: One Night with You |
| '' | 978-0-373-00258-0 | '' | Fatal Justice: Book Two of the Fatal Series: Cappuano and Holland Unplugged |
| 2015 | 978-0-373-00259-7 | Marie Force | Fatal Consequences: Book Three of the Fatal Series: Fatal Destiny |
| '' | 978-0-373-00266-5 | Tamara Morgan | If I Stay (Montgomery Manor) |
| 978-0-373-00268-9 | Dead End (A Dylan Scott Mystery) |
| 2015 | 978-0-373-00269-6 | Marie Force | Fatal Flaw: Book Four of the Fatal Series: Fatal Flaw Epilogue |
| 2015 | 978-0-373-00270-2 | Marie Force | Fatal Deception: After the Final Epilogue |
| '' | 978-0-373-00271-9 | '' | Fatal Mistake: Fatal Mistake: Book Six of the Fatal Series\After the Final Epilogue |
| '' | 978-0-373-00272-6 | '' | Fatal Jeopardy |
| '' | 978-0-373-00273-3 | '' | Fatal Scandal: Book Eight of the Fatal Series |
| '' | 978-0-373-00276-4 | Shirley Wells | Dead Simple (A Dylan Scott Mystery) |
| 2015 | 978-0-373-00277-1 | Lynda Aicher | Bonds of Trust & Bonds of Need (Wicked Play) |
| '' | 978-0-373-00278-8 | Shannon Stacey | Heat Exchange (Boston Fire) |
| '' | 978-0-373-00279-5 | W. Soliman | Lethal Business (The Hunter Files) |
| 978-0-373-00286-3 | Blade on the Hunt (Goddess with a Blade) |
| 2015 | 978-0-373-00287-0 | Anna Richland | The Second Lie (Immortal Vikings) |
| 978-0-373-00288-7 | The Valdez Marriage |
| 2015 | 978-0-373-00290-0 | Shannon Stacey | Controlled Burn (Boston Fire) |
| 2016 | 978-0-373-00297-9 | '' | Fully Ignited (Boston Fire) |
| '' | 978-0-373-00298-6 | Marie Force | Fatal Frenzy |
| 2015 | 978-0-373-00300-6 | Kaylea Cross | Lethal Pursuit |
| 978-0-373-00324-2 | Midnight Fire (Men of Midnight) |
| 1980 | 978-0-373-00332-7 | Janet Dailey | A Cowboy's Redemption |
| 1955 | 978-0-373-00336-5 | The Good and the Bad (Vintage Harlequin, #336) |
| 2016 | 978-0-373-00392-1 | Lauren Dane | Sworn to the Wolf (Cherchez Wolf Pack) |
| 1980 | 978-0-373-00409-6 | Hospital Corridors |
| 2016 | 978-0-373-00412-6 | Caitlyn McFarland | Truth of Embers (Dragonsworn) |
| '' | 978-0-373-00416-4 | Marie Force | Fatal Justice: An Anthology |
| 1976 | 978-0-373-00419-5 | In and Out of Love |
| 2016 | 978-0-373-00421-8 | Marie Force | Fatal Mistake: After the Final Epilogue |
| 2016 | 978-0-373-00422-5 | Marie Force | Fatal Jeopardy |
| 1977 | 978-0-373-00427-0 | Nurse Brookes, Originally Published As "Sister Brookes of Byng's" (Harlequin Romance, 427) |
| 1980 | 978-0-373-00430-0 | Alex Stuart | Ship's Nurse |
| 1979 | 978-0-373-00431-7 | The Silent Valley |
| 978-0-373-00433-1 | Because of Dr. Danville |
| 1976 | 978-0-373-00434-8 | Jean S. Macleod | Dear Doctor Everett |
| 978-0-373-00436-2 | Garrison Hospital |
| 1976 | 978-0-373-00438-6 | Alex Stuart | That Wonderful Feeling |
| 1958 | 978-0-373-00444-7 | Edgar Wallace | Double Dan (Vintage Harlequin, 444) |
| 1976 | 978-0-373-00449-2 | COME BACK MY DREAM |
| 1980 | 978-0-373-00451-5 | Jean S. Macleod | AIR AMBULANCE Edition: reprint |
| '' | 978-0-373-00454-6 | Jane Arbor | Such Frail Armour |
| '' | 978-0-373-00458-4 | Elizabeth Gilzean | Next Patient, Doctor Anne (Harlequin Romance, 458) |
| 1959 | 978-0-373-00461-4 | Mary Burchell | For Ever and Ever (Harlequin Romance, No. 461) |
| 1976 | 978-0-373-00462-1 | Elizabeth Gilzean | Love From a Surgeon |
| 2016 | 978-0-373-00463-8 | Kate Willoughby | Under the Spotlight |
| 1980 | 978-0-373-00464-5 | The Captain's Table (Harlequin Romance #464) |
| 2016 | 978-0-373-00467-6 | Jade Chandler | Enough |
| 978-0-373-00469-0 | Maggy (Harlequin Season's Greetings #469) |
| 2017 | 978-0-373-00472-0 | Laura Navarre | Midsummer Magick (The Magick Trilogy) |
| 978-0-373-00474-4 | Towards the Dawn |
| 978-0-373-00476-8 | Nurse Jess |
| 2016 | 978-0-373-00477-5 | Julie Rowe | Viral Justice (Biological Response Team) |
| 1980 | 978-0-373-00478-2 | Dear Trustee |
| 2017 | 978-0-373-00481-2 | Sandy James | The Brazen Amazon (Alliance of the Amazons) |
| 978-0-373-00483-6 | My Heart has Wings |
| 1980 | 978-0-373-00485-0 | Island Hospital |
| 1977 | 978-0-373-00486-7 | Nurse Caril's New Post |
| 1959 | 978-0-373-00487-4 | The Happy Enterprise |
| 1980 | 978-0-373-00489-8 | Flower of the Nettle |
| 1976 | 978-0-373-00490-4 | Nurse Maclean Goes West |
| '' | 978-0-373-00492-8 | Follow a Dream |
| 1959 | 978-0-373-00494-2 | My Love is My Reason (Love is my reason) |
| 978-0-373-00497-3 | You Took My Heart |
| 1976 | 978-0-373-00498-0 | Jane Arbor | The Eternal Circle |
| 978-0-373-00499-7 | People Like Us (Harlequin Romance, #499) |
| 1976 | 978-0-373-00500-0 | Marjorie Moore | Unsteady Flame (Harlequin's Collection, # 7) |
| 1977 | 978-0-373-00503-1 | Elizabeth Gilzean | Nurse in Charge #503 Harlequin Romance Series |
| 1976 | 978-0-373-00505-5 | Marguerite Lees | Meet Doctor Kettering |
| 1980 | 978-0-373-00507-9 | Elizabeth Hoy | It's Wise to Forget (Harlequin Romance, No. 507) |
| 1960 | 978-0-373-00508-6 | Senior Surgeon |
| 1976 | 978-0-373-00509-3 | Marjorie Moore | A Year to Remember |
| 978-0-373-00512-3 | Australian Hospital |
| 1976 | 978-0-373-00513-0 | FAR SANCTUARY |
| 1959 | 978-0-373-00514-7 | The Quiet One (Harlequin #514) |
| 1974 | 978-0-373-00515-4 | Marguerite Lees | A Case For Nurse Clare |
| 1980 | 978-0-373-00516-1 | Jean S Macleod | Prisoner Of Love |
| 1976 | 978-0-373-00517-8 | Jean S. MacLeod | Journey in the Sun (Harlequin's Collection #10) |
| '' | 978-0-373-00518-5 | Juliet SHORE | Hospital in Paradise, Harlequin Collection 59 |
| 1981 | 978-0-373-00528-4 | Mary Burchell | Wife By Arrangment |
| 1965 | 978-0-373-00529-1 | Hilda Pressley | Theater Nurse |
| 1976 | 978-0-373-00530-7 | Anne Vinton | Doctor Down Under |
| 1976 | 978-0-373-00534-5 | Anne Vinton | Her Treacherous Heart (A Harlequin Romance) |
| '' | 978-0-373-00535-2 | Juliet Shore | Under the Red Cross |
| 1977 | 978-0-373-00538-3 | Strange Request (Harlequin Romance Ser., No. 538) |
| 1980 | 978-0-373-00539-0 | Anne Lorraine | Hospital on Wheels |
| 1976 | 978-0-373-00545-1 | The Man in Authority (Harlequin Romance) #545 (A Harlequin Romance, #545) |
| 1980 | 978-0-373-00547-5 | Jean S. Macleod | The Gated Road #547 |
| 1977 | 978-0-373-00557-4 | The Time Is Short (Harlequin's Collection #32) |
| 1980 | 978-0-373-00559-8 | Anne Vinton | The Time of Enchantment (Harlequin Romance, #559) |
| 1981 | 978-0-373-00562-8 | Lucy Agnes Hancock | Christmas Gift |
| 1974 | 978-0-373-00564-2 | elizabeth houghton | Love for the Matron |
| 1977 | 978-0-373-00566-6 | Vivian Stuart | The Unlit Heart |
| 1974 | 978-0-373-00567-3 | Spring Comes To Harley Street (Harlequin Romance #567) |
| 1977 | 978-0-373-00568-0 | Juliet Shore | Nurse At Sea |
| '' | 978-0-373-00570-3 | Hilda Pressley | Night Nurse (Harlequin Romance, 570) |
| 1976 | 978-0-373-00574-1 | Vivian Stuart | Along Came Ann |
| 978-0-373-00577-2 | White Hunter (Harlequin Romance, No 577) |
| 1980 | 978-0-373-00584-0 | The Healing Touch (Harlequin Romance, 584) |
| 1961 | 978-0-373-00585-7 | Nurse to the Cruise |
| 978-0-373-00593-2 | Lucifer's Angel |
| 978-0-373-00597-0 | This Much to Give (Harlequin Romance, #597) |
| 1976 | 978-0-373-00598-7 | ONLY A MEMORY |
| 1974 | 978-0-373-00599-4 | Run Away From Home |
| 1976 | 978-0-373-00601-4 | Love Without Ending |
| 978-0-373-00604-5 | Flight to the Stars |
| 1977 | 978-0-373-00606-9 | Jean S. Macleod | Silent Bondage |
| '' | 978-0-373-00607-6 | Joyce Dingwell | The Coral Reef |
| 1976 | 978-0-373-00608-3 | Anne Lorraine | White Coated Girl |
| '' | 978-0-373-00609-0 | Marjorie Moore | Copper Beeches |
| 1981 | 978-0-373-00617-5 | And be Thy Love |
| 1976 | 978-0-373-00618-2 | Doctor Di At the Crossroads |
| 1976 | 978-0-373-00619-9 | Staff Nurse on Gynae |
| '' | 978-0-373-00623-6 | anne lorraine | Thursday Clinic Harlequin Collection 87 |
| 1982 | 978-0-373-00627-4 | Mary Burchell | With All My Worldy Goods |
| 1980 | 978-0-373-00628-1 | The House Of The Laird |
| '' | 978-0-373-00629-8 | Denise Robins | To Love Again (Harlequin Romance, 629) |
| 1976 | 978-0-373-00632-8 | Love in the Sunlight (Harlquin`s Collection, 65) |
| 1962 | 978-0-373-00636-6 | Caroline Trench | The Home at Hawk's Nest |
| 1976 | 978-0-373-00642-7 | Kate Norway | The White Jacket - Harlequin's Collection 90 |
| 1980 | 978-0-373-00643-4 | A Life To Share |
| 1974 | 978-0-373-00647-2 | Juliet Shore | Jungle Hospital |
| 1976 | 978-0-373-00648-9 | Joan Blair | Gray's Hospital |
| 1978 | 978-0-373-00659-5 | MARJORIE MOORE | GONE AWAY (HARLEQUIN COLLECTION, 131) |
| 978-0-373-00664-9 | ELIZABETH HOUGHTON | LOVE FOR THE MATRON |
| 1976 | 978-0-373-00665-6 | A Problem for Dr. Brett |
| 1977 | 978-0-373-00666-3 | Harlequin Romance; Love, the Surgeon # 666 |
| 1976 | 978-0-373-00667-0 | Kathryn Blair | The White Oleander |
| 1980 | 978-0-373-00670-0 | Operation Love (Harlequin Romance #670) |
| 1976 | 978-0-373-00671-7 | Margaret Baumann | Heart Deep |
| 1979 | 978-0-373-00675-5 | Celine Conway | Wide Pastures |
| 978-0-373-00683-0 | AVERIL IVES | DESIRE FOR THE STAR |
| 1980 | 978-0-373-00684-7 | Alex Stuart | Doctor on Horseback |
| 1977 | 978-0-373-00686-1 | Mary Burchell | Stolen Heart |
| '' | 978-0-373-00696-0 | Staff Nurses in Love |
| 1974 | 978-0-373-00697-7 | Bethea Creese | Glorious Haven |
| 1976 | 978-0-373-00702-8 | Hilda Nickson | Something Personal |
| '' | 978-0-373-00707-3 | Juliet Shore | Under False Pretences (Harlequin Romance, No. 707) |
| 1976 | 978-0-373-00708-0 | Calling Nurse Grant; Harlequin Collection 67 |
| 1973 | 978-0-373-00711-0 | Jean S. MacLeod | My Heart's in the Highlands |
| 1980 | 978-0-373-00713-4 | Harvest of the Heart |
| 1976 | 978-0-373-00714-1 | Valerie Nelson | Conduct Unbecoming (Orig. Publ. as Young Nurse Payne) |
| 978-0-373-00715-8 | ANNE VINTON | THE HEART OF A HOSPITAL (HARLEQUIN'S COLLECTION) |