**In this thrilling story of crime and corruption, three detectives keep their identities secret, and NYPD’s Det. Helene Grey is on a mission to unmask them—no matter who gets killed along the way.** In New York City, three intriguing, smart, and stylish private investigators open Holmes, Marple & Poe Investigations. *Who are these detectives with famous names and mysterious, untraceable pasts*? **Brendan Holmes** —The Brain: Identifies suspects via deduction and logic. **Margaret Marple** —The Eyes: Possesses powers of observation too often underestimated. **Auguste Poe** —The Muscle: Chases down every lead no matter how dangerous or dark. The agency’s daring methodology and headline-making solves attract the attention of NYPD Detective Helene Grey. Her solo investigation into her three unknowable competitors will delight mystery fans.