Yes, another book is on the way. The Roosevelt Cottage, the fifth Big Bend Country Mystery, is about 90% complete. But it's been interrupted by my textbook publisher wanting a tenth edition of Everything's An Argument, which I co-author with Stanford University professor, Andrea Lunsford. I think The Roosevelt Cottage will benefit from the pause, giving me some distance on what I've written so far.
Those of you familiar with Big Bend National Park likely know that the so-called Roosevelt cottages were built at the park by the Civilian Conservation Corps during the Depression, part of a nationwide effort back then to employ out-of-work young men during those tough times. Though the near-century-old stone buildings lack air-conditioning, the cottages are always in high demand with visitors who appreciate their charm and out-of-the-way location.