When you live in one place for a long time, you get to know your neighbors.
For better or for worse, they're part of your life in one way or another. An 11-year-old boy named Lennox Goebel got to know one of his neighbors really well, but it wasn't one of the human variety. Lennox absolutely loved the dog next door named Bogart, which is why he was sad when Bogart went away for awhile.
The owner was traveling, so Bogart went to stay with a friend across the country for a year. Lennox never forgot about Bogart, praying for him every night.