Review: Heroes by Robert Cormier

So this one was for my ENGLISH LIT EXAM! You'd think that meant I hated it, but no, so therefore I am reviewing it.
 PS, this review will be just edging on the spoilery, especially if you're good at reading between the lines.
 Francis Cassavant has just come back home from the War and he has no face. But that's how he wants it to be. The War -- and the events that occurred before he left to fight it -- have taken their toll, and he doesn't want to be recognised. Not before his final mission is complete.