Linda Howard is a very popular romance author who specializes in romantic suspense. According to Wikipedia, she has been writing since early childhood and wrote privately for 21 years for her own enjoyment before attempting to break into print in the romance genre where she was immediately successful. Here is her backlist:

Single Novels:
All That Glitters (1982)
An Independent Wife (1982)
Against the Rules (1983)
Come Lie With Me (1984)
Tears of the Renegade (1985)
The Cutting Edge (1985)
The Way Home (1991)
Overload (1993)
Heart of Fire (1993)
Dream Man (1995)
After the Night (1995)
Lake of Dreams (1995)
Shades of Twilight (1996)
White Out (1997)
Son of the Morning (1997)
Night Moves (1998)
Now You See Her (1998)
Blue Moon (1999)
Mr. Perfect (2000)
Open Season (2001)
Strangers In the Night (2001)
Dying to Please (2002)
Cry no More (2003)
Killing Time (2005)
Cover Of Night (2006)
Up Close and Dangerous (2007)
Death Angel (2008)
Burn (2009)
Ice (2010)
Veil of Night (2010)
Prey (2011)
Shadow Woman (2013)
Shattered (November 2014)

Series:

Spencer-Nyle Co. series:
1. Sarah's Child (1985)
2. Almost Forever (1986)
3. Bluebird Winter(1987)

Rescues (Kell Sabin) series:
1. Midnight rainbow (1986)
2. Diamond Bay (1987)
3. Heartbreaker (1987)
4. White Lies (1988)

MacKenzie Family Saga series:
1. MacKenzie's Mountain (1989)
2. MacKenzie's Mission (1992)
3. MacKenzie's Pleasure (1996)
4. MacKenzie's Magic (1996)
5. A Game of Chance (2000)

A Lady Of The West series:
1. A Lady of the West (1990)
2. Angel Creek (1991)
3. The Touch of Fire (1992)

Patterson-Cannon Family series:
1. Duncan's bride (1990)
2. Loving Evangeline (1994)

CIA's Spies (John Medina) series:
1. Kill and Tell (1998)
2. All the Queen's Men (1999)
3. Kiss Me While I Sleep (2004)

Blair Mallory series:
1. To Die For (2004)
2. Drop Dead Gorgeous (2006)

Linda Howard and Linda Jones:
1. Vampire - Blood Born (2010)
2. Men from Battle Ridge -Running Wild (2012)

Collections:
1. Trouble: Midnight Rainbow / Diamond Bay (1992)
2. Night Moves: Dream Man / After the Night (1998)
3. Strangers in the Night: Lake of Dreams / Blue Moon / White Out (2001)
4. Shades of Twilight / Son of the Morning (2005)
5. Angel Creek / Lady of the West (2005)
6. Mackenzies Bundle: "Mackenzie's Mountain / Mackenzie's Mission / Mackenzie's Pleasure / A Game Of Chance" (2006)
7. At His Mercy: Mackenzies Magic / Heartbreaker / Overload (2008)
8. Duncan's Bride / Loving Evangeline (2008)
9. Exposure: The Cutting Edge / White Lies (2012)

Look on Amazon.com for Shadow Woman: A Novel