The first in a new mystery series set in New York - When New York City Department of Sanitation garage supervisor Anna Winthrop finds Isaiah, a homeless man shes befriended, with his throat cut behind her apartment building, she decides to investigate. But the case turns dangerous as her search takes her from the elegant art galleries of the Upper East Side to Manhattans secret homeless encampments, and the vast network of abandoned subway tunnels beneath Grand Central Station . . .