A brand-new story from Brambly Hedge, based on the enchanting world created by Jill Barklem. Brambly Hedge has flooded, and it is dangerous to go outside. Instead, little mice, Wilfred and Primrose, are playing indoors with the Vole children. But then, young Sissy Vole goes missing... Is Wilfred brave enough to take charge of a daring, secret rescue?

Follows the activities of the Brambly Hedge community of field mice on a spring day as they prepare a surprise picnic for Wilfred's birthday.

A well-to-do little mouse, exploring on her own, experiences both pleasant and frightening adventures before she is safely home again.