Glad Tombstone made it home. You might want to consider getting Tombstone microchipped, if he isn't already. I just saw a piece on tv a few days ago about a Beagle that was gone for 17 months and ended nearly 400 miles from home. Before being returned to his owner he had ended living with a foster family. They had to take the dog to the vet for a cough and the vet just happened to check if he had a microchip. Sure enough. And after 17 months and almost 400 miles he was returned to his owner. That was a happy ending. Here is a link to the story:
Beagle missing for 17 months ends up 400 miles away in Brentwood | Local News - WTAE Home