Rumour has it that there's a monster in the woods. But why doesn't anyone do something about it? Frith is determined to save the day, and with her hard-working dad, younger brother, Spuggy, and dog (called Cabbage), Frith will travel to the big city to convince the king that Something Must Be Done. Along the way, she'll encounter a Big Wise Head, a mysterious squirrel, and discover that not all is as it seems.