Cold Service - Robert B. Parker

When his buddy Hawk is beaten within an inch of his life, Spenser infiltrates a ruthless mob in the name of friendship--and revenge--in Parker's New York Times bestseller. When his closest ally, Hawk, is beaten and left for dead while protecting a bookie, Spenser embarks on an epic journey to rehabilitate his best pal, body and soul. But that means infiltrating a ruthless mob--and redefining his friendship with Hawk in the name of vengeance... Cold Service moves with the speed of light.-- Orlando Sentinel