With his first novel, 1993’s Martin and John, Dale Peck drew critical hosannas for his uncannily authoritative grasp of style, which would have done credit to any veteran and was especially impressive given his youth . . . The book put some readers off, though, with its self-consciously complex stories-within-a-story structure, Peck’s newest effort, The Law of Enclosures, is if anything more pretentious in its concept, and if possible more virtuosic in its execution.