Gumshoe Rock: The Mortimer Angel #4    by Rob Leininger Order:  USA  Can Oceanview, 2019 (2019) Hardcover, e-Book      Reviewed by Mary Ann Smyth Oh, boy. Another P.I. mystery starring Mort Angel and his gorgeous assistant Lucy Landry. The two of them are working on an embezzlement case. At the same time, Nevada's senior Internal Service agent, Ronald Soranden, has vanished without a trace. Until his skull, stripped clean and white, is dropped through the slashed top of Lucy's Mustang convertible! While working on their embezzlement case, they realize that the IRS agent's death is connected to it, and everything takes a turn for the worst. As the FBI begin to investigate the murder, Mort and Lucy realize that some details turned up closely relate to their embezzlement case. A vicious case of blackmail shows itself. Mort and Lucy have faced lethal situations before but none like the one that faces them now. Gumshoe Rock is tightly written, with a keen sense of humor that also radiates through the author's first three books – Gumshoe, Gumshoe for Two, and Gumshoe on the Loose. I found this fourth very hard to put down. Fortunately, it has many pages to satisfy the mystery lover. Note: Opinions expressed in reviews and articles on this site are those of the author(s) and not necessarily those of BookLoons. Find more Mystery books on our Shelves or in our book Reviews