Humorist Dave Barry has long mined the weirdness of his adopted state, Florida. He does so again with “Insane City,” his new darkly comic novel. He’ll appear at The Music Hall in Portsmouth, N.H., on Feb. 12 at 7:30 p.m. as part of New Hampshire Public Radio’s Writers on a New England Stage series. Ticket for the events are $17, or you can tune in for free.