What’s a guy to do when his dog goes missing? If you’re Dennis Lehane, mystery/fiction/short story writer par excellence, you use traditional methods- post flyers, scour the neighborhood, offer a financial reward- and nontraditional- establish a Facebook page(Finding Tessa) and promise inclusion in his next book to the person who finds his missing beagle. Tessa escaped from the yard at the family home in Brookline, Mass. on Christmas Eve and the family is eager for her return-there will be no questions asked. Let’s hope for a happy ending.