English author Fiona Barton heads to Plainville to promote The Child, her second thriller. The title refers to a long-dead infant, whose skeleton is uncovered on a London construction site. An enterprising journalist tries to untangle the story as the narrative shifts between three female points of view. It’s the sort of thriller where each chapter is only three or four pages long, so you end up repeating over and over that you’re only going to read one more. The Child is getting positive reviews from critics and audiences, with readers liking it even more than last year’s bestseller The Widow.