I don't want to make anyone look stupid, so I hope that you don't mind if I ask if he is Chipped? Was he wearing a Collar with name tag? Please make sure that you check with the Animal Shelter daily, and stop in to see for yourself if he's there, or not. I was there one day when a Family came in to look for their Dog. The Shelter told them "NO", but there he was in a Cell, right in front of them. I have a Boston too, and they are such personable little things. Don't give up hope!! My Sister's Cat got lost when the Carrier she had him in at the Vet came apart. The cat ran, and for almost 2 years, my Sister & Husband keept looking for him. This past Christmas, their diligence was rewarded, and Bosco is home safe & sound. I wish the same Happy Ending for you & Eddie.