It took a couple of weeks, but I think I've managed to stuff Gamewright's Forbidden Desert into the AHtcg ruleset.
Contains 108 cards(!), of which 62 are unique.
This isn't a story-focused experience -- you're just rushing off to the desert to close a gate. There're little-to-no spoilers to be suffered, so I invite you to take a look at the cards here,
I've playtested it at 1, 2 and 4 players. Vast majority with 2. I'm of the opinion that it plays best at 2. The inevitable ramp in chaos feels great. 4 becomes a real rollercoaster very quickly, which is its own sort of fun. At 1 investigator, I feel like the game plods a bit early on and can feel a little empty (the 'game board' being so large). I was very close to labeling it strictly 2-4 players, but I opted not to since I can't claim to have exhaustively playtested it solo nor can I speak for others' tastes.
The game plays like a board game! I think it actually leans closer to Forbidden Desert than it does to 'typical' AHtcg (whatever that is in these early stages). You will be spending a lot of your actions just moving, clearing 'sand' (doom tokens) and flipping locations. Just like Forbidden Desert. And it gets extremely tense as you proceed. Just like Forbidden Desert!
It's a big pile of cards, so I wanted to include a couple of options for anyone who's willing to take the plunge and print them out:
Here's a zip file (pdfs) with fully foldable cards. So assets have the standard asset design on the back, encounter cards have theirs, etc. There are 27 sheets.
Here's a zip file (pdfs) with all the 'standard' back art removed. So all single-faced cards are just the front design. Double-faced cards (locations, etc.) are still presented in foldable form. There are 19 sheets.
And for those with access to Tabletop Simulator, you can find the scenario and a dedicated table here:
Earlier today I made a short (not as short as I'd hoped) video that I'm a little wary of sharing, just going through setup and and an example turn 1. It's fine, I guess, but I have a bit of a cold today and it's been weeks since I last talked into a microphone. Not super happy with how the video turned out. Still, it might be helpful.
Please feel free to share any thoughts. If you see any obvious mistakes, typos (especially typos!), murky rules and interactions, whatever, let me know and I'll be sure to look into it. And should anyone actually play it, obviously on-table feedback is welcome! 
And many thanks to the folks behind Strange Eons, the program which I used to make the cards. A remarkable bit of software. http://cgjennings.ca/eons/