I'd fallen out of the .NET world before Async/Await arrived, but were someone to put some under-the-hood-monkeying around-with-it docs under my nose, I'd love to brush up. I seem to have osmosed that there is some compiler transforming going on, but I've not been exposed to ways to monkey around, did not know there was more than a use-only black box: would be lovely to get an engine-bay tour. Have you any recommendations?