"I wonder what Annie hopes to find out by following Angelina Carmen? It certainly is thrilling!"

A bomb has destroyed part of the town hall and that mysterious gang of boys known as The Black Jacket is suspected of having set off the bomb however, Annie doesn't believe they did it and she and Joe set out to trail a woman who she felt sure would lead them to the person who did it. And now they continue to follow her...

There are no more parts of this story line but it gives you a sample of what this juvenile series was like.