Borderline is a great beach read. Something the reader can consume in a few hours, depending on reading speed. The content is for adults, but mysterious and dark enough that it should entertain those looking for a break from their regular scheduled thrillers they might have on rotation. Lawrence Block always has and will continue to be an amazing crime fiction writer. This story, like many of his others, is filled with intrigue, action and plenty of suspense and should be considered a priority read for anyone that enjoys pulp crime novels.