Captain Marvel, Jr. #13 (1943)

So, you want to know about Captain Marvel Jr. #13? Well, let me tell you, this one's a classic.

First up, we've got "Goes to School," which sees our hero Billy Batson trying to balance his superhero duties with his studies. As you can imagine, it's not easy being a teenage superhero, but Billy manages to pull it off with aplomb.

Next, we've got "The Case of the Missing Briefcase," which sees Captain Marvel Jr. investigating a robbery at a local bank. The thief has made off with a briefcase that contains some very sensitive information, and it's up to our hero to track it down before it falls into the wrong hands.

Then there's "The Mirage Projector of Crime," which involves a sinister device that can create illusions that make it appear as though crimes are being committed where they're not. Captain Marvel Jr. must use all his wits and strength to stop the evil mastermind behind the scheme.

Finally, we've got "The Case of the Poison Press," in which Captain Marvel Jr. takes on a corrupt newspaper publisher who is spreading lies and propaganda to further his own interests. Our hero must expose the truth and put a stop to the publisher's nefarious scheme.

Overall, Captain Marvel Jr. #13 is a thrilling read that showcases everything that makes comic books great - action, adventure, and a hero who always stands up for what's right. If you're a fan of classic comics, then this one should definitely be on your must-read list. And if you happen to have a copy of it lying around, well, you know who to call.