This may have been obvious but I just put this together
"I work in soho, I hear things."
No, that's not it, Aziraphale. You got shadwell to spy on your boyfriend, didn't you?
Have we established how long Shadwell and Aziraphale have known each other because I find it convenient that just as Shadwell shows up to Crowley's meeting in the Dirty Donkey, Aziraphale turns up there too.
That's the face of a man who just got caught
This is exactly what happened, and we have a couple of clues to that end.
When Shadwell initially enters the heist meeting at the Donkey, we learn that Crowley had actually hired Mr. Narker. Shadwell informs Crowley that Mr. Narker has died and given over his business to Shadwell. Two things about this.
First, this plot point and dialogue are completely unnecessary unless it's a clue. My guess is that Mr. Narker experienced a "miraculous blessing" of fortune which detoured him away from Crowley's heist. Aziraphale then sends in his (hu)man Shadwell, with the story that Narker has died.
Which leads to the second point, being that Shadwell's story about Mr. Narker is pretty questionable. If Mr. Narker was dying and had the foresight to bequeath his lock master business to Shadwell, he apparently hadn't told his clients, aka, Crowley? And if Mr. Narker died unexpectedly, well then, there's no bequeathing of anything. It's a flimsy story either way.
Something I noticed on subsequent viewings is that when Crowley leaves the Donkey, Shadwell is already outside, standing and facing the bookshop. Possibly signaling to Aziraphale on the second floor confirming the heist is a go?
No matter what happened in 1941, no matter what transpired between them, Aziraphale has been keeping tabs on Crowley, protecting him from afar. Aziraphale is Crowley's guardian angel in the most literal sense.
And based on what we see at the heist planning, Crowley very much needs one because he is the worst criminal mastermind ever. He goes by his own name, he unquestionably accepted Shadwell into his heist gang on a word, without confirming anything, and my favorite bit, whips out a huge wad of cash in a room full of thieves who outnumber him three to one. Crowley. Darling demon. You may be able to perform miracles, but all it would take is a lucky bullet or knife blade to be discorporated. That eternal optimism can work against him.
One final observation. Given this, Shadwell's been on Aziraphale's payroll since at least the 1960's, and this "church caper" is almost certainly how Shadwell comes to work for Crowley. Which means he's been working for and checking up on both, each for the other, and double-dipping them for cash, for more than fifty years.
This was me. I'm awful at keeping more than one account, it was only a matter of time before I posted on the wrong account. 😅 Man, it was fun to meta again.
brilliant meta!