Helena is big-sister mouse to three younger siblings, living a snug and well-fed life within the ancient walls of the Cranston family home. When the Cranston humans decide to sail away to England to find a husband for one of their daughters, the Cranston mice stow away in the name of family solidarity. And so begins the scamper of their lives as Helena, her siblings, and their humans set sail on a life-changing voyage into the great world of titled humans . . . and titled mice, and surprise endings for all. The masterful Richard Peck brings all of his talents to this tale of two branches of an American family, set on the eve of Queen Victoria's diamond jubilee. There are plenty of laughs and thrills, and of course there's a ship's cat too. Will our Cranston heroes squeak by, or will they go entirely overboard?