Mary Higgins Clark is a regular on PW's weekly charts and also on our end-of-the-year bestseller lists. Last April, Nighttime Is My Time hit the list in the #3 spot (as did many other bestsellers in 2004, when The Da Vinci Code and The Five People You Meet in Heaven dominated the #1 and #2 positions) and had about 800,000 copies in print after six trips to press. Now, the Pocket Books mass market edition does land in the top spot; it has 1,630,000 copies in print.