Boston author Dennis Lehane asked his social media followers on Thursday to help him continue his search for his lost dog, Tessa. Lehane invited supporters to meet him at the Stop & Shop in Brookline and at the McDonald’s in Brighton where he and his family and friends put up signs with Tessa’s picture and contact information. Lehane, who reported the rescue dog’s disappearance late last month, has said that he’ll name a character in his next book after anyone who locates the pup. Tessa is a black and tan beagle. Lehane says that if you see her, don’t chase her. There are tips for approaching lost dogs on Lehane’s Finding Tessa Facebook page.