Jack Hammer

In Boston, powers are real, heroes are rare, and Jack McGriskin is a privatedetective with a strong right arm and a nose for trouble. When a missing person

he's been hired to find turns up dead, he stumbles into a network of corruption

stretching from the streets of Boston to the halls of Congress, and the clues

lead him back to a world he'd left behind. And just as things are starting to

get back to normal, a new shadow falls across his path in the form of the

mysterious Usurper.