"Warrior Scarlet" by Rosemary Sutcliff (1957; repr. Farrar Straus Giroux 1994; 207 pp., black and white illustrations) was a terrific read. It's the coming-of-age story of Drem, a boy in Bronze Age Britain; he has only one usable arm, which obviously has profound implications in a hunting culture. He has both failures and successes, very movingly told, as he grows to manhood; the author skilfully weaves much historical detail into the story.

Harpo (8) enjoyed it on his own; it also made an exciting read-aloud for Groucho (6) and Chico (4). I gather from various sources that some of Sutcliff's other books are more suitable for teens (this is the first one we've read; we're a few chapters into Eagle of the Ninth now), but this one was just fine for elementary-aged children.

At the risk of sounding sexist, I think it might grab boys more than girls (though I suppose you never know); gender roles are very starkly delineated, as you might expect, and there is only one female character of much importance to the story.