Eddie Red, NYPD’s youngest undercover employee, uses his photographic memory and quick-draw artistic skills to solve crimes. When mysterious notes directed at him are delivered to the police station, he is brought in to solve the mystery. How are a renowned art thief from Eddie’s past, the Irish Republican Army, the Trojan Horse, and a duchess connected? In cat-and-mouse code-breaking challenges from the elusive “Fox,” Eddie follows a trail of clues that take him to historical monuments and city landmarks to save lives and stop heists. This latest book in the Edgar-nominated mystery series, filled with maps and puzzles, will hold the attention of readers until the end. A short epilogue includes “HOW TO BE A CRYPTOGRAPHER” instructions for breaking codes.