One of the largest used book stores in the world lies about 20 minutes south of me in downtown Detroit, with a much smaller satellite about 20 minutes northwest of this one.
John K. King Books, here is the website: https://www.johnkingbooksdetroit.com/
Burroughs section. More Tarzan books than you'll ever see in the same place.
Most endcaps look like this.
There was a glass case on the other side, but I saw no games.
Just to give you an idea of the scope, one of the perimeter aisles on the third floor. You receive a map of the layout upon entry.
Found no Tolkien here nor there.
Tons of old DAW books scattered throughout.
Glass case stuffed with books. Is that a copy of the Necronomicon? The Book of Skelos?

Even the stairs have books.
This was just a scouting mission; I bought nothing. Was kind of hoping to stumble into some Appendix N classics or some Clark Ashton Smith material. They could have been there. Your Holy Grail could be in there and you would never know.