In February 2012 the Tome Show Book Club read Erik Scott DeBie's Shadowbane, a Forgotten Realms novel set in Luskan with characters developing out of his previous book Downshadow. This book is part of the larger D&D novels story called the Abyssal Plague, although background knowledge of that event and the events of Downshadow are not needed (Jeff had not read Downashadow before this book and Tracy had not read any Abyssal Plague books). According to Jeff, "DeBie understands what it means to write in a shared world better than any other author writing in the Forgotten Realms and in Shadowbane he has crafted the perfect Realms story."
If you want to buy Erik's FR books, take a gander:
If you want to buy the next Book Club book it is Brimstone Angels by Erin Evans.