Wheaton, IL–October 2007—Clues indicate that a dangerously disarming duo of authors is targeting Barnes & Noble stores in the Chicago area. Mystery fans should be on the lookout for Luisa Buehler, author of the Grace Marsden mystery series and her partner in crime, Robert Goldsborough, author of the Snap Malek mystery series. Reports indicate that this clever and entertaining pair are making appearances at a variety of events, bookstores,…