Holmes is missing: a Holmes, Margaret & Poe mystery

"Success has come quickly to Holmes, Marple & Poe Investigations. The New York City agency led by three detectives--Brendan Holmes, 'the brain,' Margaret Marple, 'the eyes,' and Auguste Poe, the 'muscle'--with famous names and mysterious pasts is one major case away from cementing its professional reputation. But as a series of child abductions tests the PIs' legendary skills, the cerebral Holmes's absence leaves a gaping hole in the agency roster. Only by closing ranks and solving the mystery within can they recover all that's been lost."--