What do I do about this dog?

Ok, well today I found this Beagle, And He was really nice and everything, But he was LOST. He had a tag, and looked pretty healthy. Then he ran away from us and ran to our neighbor’s house. And they said they probaly are going to take him to the pound, But I really didn’t want him to go to the pound. I was hoping we could watch him or something, But my mom said no. And anyway if we would have done that, Then I don’t know what we would have done about his owners. I don’t know where he’s at right now, But he’s either at my neighbor’s house or at the pound. I feel so bad for the little guy. I don’t know what to do! I never really thought about getting a beagle but I kind of want him now. Please help.