The Sentinel by Jeffrey Konvitz [FIRST PAPERBACK EDITION / 1976]
The Sentinel by Jeffrey Konvitz
VINTAGE PAPERBACK  BALLANTINE BOOKS
6th Ballantine printing w/ Dual layer peek-a-boo cover.
Book is in very good condition. Seemingly unread w/ visible shelf / rub wear to cover. Binding is tight. Reads as new w/ some tanning.
And the secret you will never be able to forget, even if you try...