Sure enough, Albert's tipsy pops sells Joey to Captain Nicholls, a soldier in town. He gets quite a few nickels for him, too: forty pounds.
Before everything is complete, Albert shows up. He's determined to stop the sale.
Unfortunately, the sale goes through, but Captain Nicholls tells Albert that he likes his spirit. Maybe someday he can join the cavalry and find him. Sounds like trying to find a horse-shaped needle in a haystack the size of France...