Usually when people sing along to the “Ghostbusters” song by Ray Parker, Jr., and they get to the “Who you gonna call?” part, they don’t yell out, “MY! AGENT!” But as writer Dan Hanks explains in the following email interview about his British folklore- and nostalgia-infused supernatural fantasy adventure novel Swashbucklers (paperback, Kindle, audiobook), that’s exactly what he did…when he got home.