The Goliath Bone: Mickey Spillane and Max Allan Collins

A Mike Hammer novel. On an amateur dig in Israel, two students discover what seems to be the femur of a very large humanoid and it's likely to be the thigh bone of the Biblical giant, Goliath. Back in New York, they are heading into the subway, carrying the carefully wrapped bone when a hitman attempts to kill them. Hammer comes to their rescue, though it's only the beginning of their troubles.