The big scuttlebutt in the publishing world last summer was the debut of crime writer Robert Galbraith, who, it was discovered in pretty short order, was none other than Harry Potter’s creator J.K. Rowling. Of course after the true identity of the author was revealed sales skyrocketed, but the attention, it turned out, was warranted. In the first novel in the series, The Cuckoo’s Calling , Galbraith/Rowling introduced the reader to a London-based detective by the name of Cormoran Strike, an ex-soldier from the war in Afghanistan, illegitimate son of a famous British rocker. The Silkworm starts its narrative thread several months after the events in Cuckoo , in which Strike embarrassed the metropolitan police force by more or less independently solving a high-profile case involving a young Kate Moss-type character. This time the story centers on the grisly murder of a midlist author, which grabs the tabloid headlines and captures the imagination of the capital. It all takes plac