Eleven-year-old sternman Josie wants red-and-gray sawtooth mittens like his lobster boat skipper, but the village knitter, Aunt Agnes, makes him old-fashioned compass mittens with lines that point the directions. “Ice Harbor men wear compass mittens,” Josie’s mother tells him. “They’re our good luck.” Sure enough, when their boat gets lost in a thick fog, Josie and the skipper find out these old-time mittens hold the key to getting them home safely. There just might be some magic knitted into them.