Tune in on Sunday at 6 p.m. to WGBH-FM 89.7 or listen online anytime, as WGBH host Callie Crossley talks to me, Hank Phillippi Ryan, and Peter Swenson for her summer thrillers club. Callie’s great – she read our books and had really smart questions. Did she stump us? Only one way to tell is to listen!