From: Sleuth Kings <Sullivan@sleuthkings.com>
Subject: Strange Postcard Case: A Hidden Message
You got the postcard. Good.
Someone sent it to me the other day, but I haven’t been able to figure out how to read whatever message is hidden on it. Hopefully, with your heIp, we can.
There’s something you should know: The Sleuth Kings logo and URL address were both included on the postcard when I received it. Somehow, someone got onto the website and added the page without me knowing. As far as I can tell, there’s nothing special about the page – it’s just a contact form for my email – but it’s still concerning.
How they did that isn’t important right now, though. What we need to focus on is figuring out what the postcard’s message is. After studying it for a while, all I can say is that it seems like the easiest place to start is with the box of letters on the back whose first row reads “A F T E R H.”
Try taking a look at that cluster of letters and see if you can figure out what it’s trying to say. Reply to this email and let me know what the message is once you’ve figured it out.
Since “A F T E R H” is red and the rest of the letters are white, I’m guessing they’ve got something to do with how to unscramble this. Maybe “A F T E R H” is an anagram? If I'm right, each column will move as a whole, so every letter (or space) beneath "A F T E R H" will follow the red letter it's under. Once you've unscrambled the anagram and shifted the white letters (or spaces), you should be able to read the message.
P.S. If you need additional heIp, feel free to reply to this email with “HeIp” and I’ll send you my thoughts.