Blood Brothers — Steven Barnes

Austin Tucker was a Green Beret, a man with lightning reflexes and the training to use them. But his life was shattered one Thanksgiving night when strangers invaded his home and killed his son, his daughter, and his wife.

Derek Waites was once an outlaw computer hack the infamous Captain Africa. Now he designs computer games. Someone has just tried to kidnap his son, while his daughter cried a strange warning and burst into flames.

The two men can have nothing in common--Tucker is a white man from the suburbs, Waites is a black street-hustler trying to go straight. But they are brothers in the same cause. If Tucker and Waites can resolve their differences long enough to work together, they can defeat an ancient evil. Between them they have the skills and the knowledge to break an ancient cycle of supernatural predation, and save the lives of a generation of children.