I think its on the hidden glades, your supposed to have your luck by 30 ( I have 30 luck when I accessed it so Idk if you need 20 luck to work) to access it. And removing the blessing is a pain in the ass
You need 10000 "blessing points" to access the hidden glade, you get that by donating enough to get Lucille first, then getting the 10,000 needed to find the Hidden Glade. Given that I always have at least 20 luck when I get the "access to the Hidden Glade granted" not sure if 20 luck is needed also or you can access the Glade without the "access granted by Lucille" just by having 20 luck.