The Cat Who Walks Through Walls by Robert A. Heinlein

Mission: retrieve the computer backups that can restore the sentient computer who masterminded the 2075 revolution that freed Luna.

It's readable, but in the end depresses me and leaves a bad taste, not only through the dismal ending but through the randomness of the ending, the arbitrary way in which it's done, and the feel in retrospect of the whole thing, of a kid pulling out toys and playing with them for a while before throwing them carelessly back in the box.

(Brief review written in 1986. I had bought the book but later got rid of it.)

This book goes from kinda weird to totally bananas at about 60%. After that I really couldn't tell what was going on, nor did I care all that much. I knew nothing of Heinlein before reading it, and kept feeling like I was missing something.