Yeah that is one I didn't have yet.... BOUGHT IT!! I think the only one left would be the Police Quest one.
There are actually like two novelized books for police quest. The Official Book of apolice Quest and the Police Quest Casebook.
One is pretty straight adaptation of the game suitable as a walkthrough. The other one reinterprets the stories changes order of events and adds scenes not seen in the games, not as useful as a walkthrough.
The former was written by the same author who did the Official Guide to Roger Wilco (not to be confused with the Space Quest Companion).