"My Gal Sunday" by Mary Higgins Clark is a mystery novel published in 1996 by Simon & Schuster. The hardcover book features a large type format and is 400 pages long. It falls under the genre of fiction, with a focus on short stories and women sleuths. The novel is a captivating read that follows the protagonist, Regine Bowman, as she navigates through a series of mysterious and intriguing situations, making it a compelling addition to the mystery and detective genre.