A lullaby is supposed to be calming, but when Gwen Weaver hears it coming from a top hat in the local park, surrounded by kids, all she can do is grab them and run. The signature is chilling to anyone who knows where it's from; the Roundabout Bomber of the eighties. After he vanished in 1991, it seems like he's back in Gwen's little town of Goderich, and he's after the children. But when the police department releases a statement that the bomb was nothing more than an accident, Gwen publishes her own article on her blog about what really happened. Controversy is sparked, and suddenly she has to deal with an old nemesis from high school that became the Sheriff, and a mysterious new woman with tempting words. Investigating is difficult while injured, but with help from her friends Gwen thinks she can figure out what's going on before another bomb goes off.