Walnut Whirl - Lenny & Jake Author:Hazel Townson In this eighth book in the "Lenny and Jake" series, Lenny and Jake are being followed by a stranger and the chase overtakes a school outing to an Elizabethan mansion. Hazel Townson also wrote "The Great Ice-cream Crime", "One Green Bottle", "Fireworks Galore!" and "Through the Witch's Window".