I've owned Pillars of the Earth for about six years but haven't started reading it yet.
This is strange to say, but Under the Dome, coming in at apx. 424,515 pages, needed to be longer. Stephen King seemed to give up on bringing the thing to a logical conclusion and just burned it all down.
As to not getting The Hitchhiker's Guide, you clearly need to find a deserted island and maroon yourself with the first three books and the original radio shows and not leave the island until you finally get it. Until you do, your life will be nothing but an answer with no question, a mediocre Vogon sonnet, a postcard of a cathedral that has been made to have never existed, a ride through the space-time continuum on Eddie's couch.
Edge trilogy, by me.
Go to the edge of the cliff and jump off. Build your wings on the way down. --Ray Bradbury
What begins at the water shall end there, and what ends there shall once more begin. --Straka