Author Mary Higgins Clark poses in her home. AP

Mary Higgins Clark, the inimitable "Queen of Suspense" whose tales of women facing life's harsh challenges made her one of the world's very much loved writers, died on Friday. She was 92.

Whether it is women looking danger in the eye or a lady whose husband is a lunatic, she tackled all these subjects with remarkable ease and skill. She knew how to keep the readers riveted on her world of fiction – and how!

Her publisher, Simon & Schuster, announced that she died of natural causes in Naples, Florida.

"Nobody ever bonded more completely with her readers than Mary did," her longtime editor Michael Korda said in statement. "She understood them as if they were members of her own family. She was always absolutely sure of what they wanted to read – and, perhaps more important, what they didn’t want to read – and yet she managed to surprise them with every book."

Widowed in her late 30s with five children, she became a perennial bestseller over the second half of her life, writing or co-writing "A Stranger Is Watching," "Daddy's Little Girl" and more than 50 other favourites. Sales topped 100 million copies and honours came from all over, including a Chevalier of the Order of Arts and Letters from France or a Grand Master statuette back home from the Mystery Writers of America. Many of her books, like "A Stranger is Watching" and "Lucky Day," were adapted for movies and television. She also collaborated on several novels with her daughter, Carol Higgins Clark.

Mary Higgins Clark specialised in women triumphing over danger, such as the besieged young prosecutor in "Just Take My Heart" or the mother of two and art gallery worker whose second husband is a madman in "A Cry in the Night." Clark's goal as an author was simple, if rarely easy: Keep the readers reading.

Married since 1996 to former Merrill Lynch Futures CEO John J. Conheeney, Clark remembered well the day she said goodbye to hard times. It was in April 1977, and her agent had told her that Simon & Schuster was offering $500,000 for the hardcover to her third novel, "A Stranger is Watching," and that the publisher Dell was paying $1 million for the paperback. She had been running her own script production company during the day and studying for a philosophy degree at Fordham University at night, returning home to New Jersey in an old car with more than 100,000 miles on it.

"As I drove onto the Henry Hudson Parkway, the tailpipe and muffler came loose and began dragging on the ground. For the next 21 miles, I kur-plunked, kur-plunked, all the way home," she wrote in her memoir. "People in other cars kept honking and beeping, obviously sure that I was either too stupid or too deaf to hear the racket.

"The next day I bought a Cadillac!”