I've never seen a compendium, but it's a great idea. I'd be interested if there's anything like this out there.
And if there's not, sounds like a cool opportunity for someone in publishing to throw together.
The only things that spring to mind as being based off of fantasy novels are the Dragonlance Chronicles series of modules (which really weren't "based" on the books but the books were released first.)
And, of course, the (some say) classic "Dungeonland" adventures based on Lewis Carol's "Alice's Adventures in Wonderland."
I had the idea, yeeeears ago after reading the "Tao of Pooh", but never put it together (if someone would care to take a swing at it) to create a "twisted nightmarish" version of an adventure through the Hundred Acre Wood of Milne's Winnie the Pooh.
Pooh would be a werebear, Rabbit was a mad wizard polymorphed by one of his failed experiments into a giant talking hare. Eeyore- a depressed unicorn under a curse. Christopher Robin- a ranger NPC with a sincere desire to "help" the party but clueless and inept. Owl was initially an owlbear but then switched him to a dark druid or demonically possessed antagonist, trying to enslave the Hundred acre wood. etc. etc.
Anywho, again, great idea about the compendium. Hope someone else can be more help.
--Steel Dragons