I almost didn’t pick this one up. The premise — grumpy old man, chatty little boy, unlikely friendship — felt familiar in the way that can sometimes mean safe and predictable. I’d been there before with books that promise warmth and deliver sentiment, that mistake cosiness for depth. I was prepared to be pleasantly entertained and quietly unmoved. I was wrong. Completely, happily, embarrassingly wrong. Frank & Red got under my skin in the way only the best books do — slowly a