Orphan Henry's stingy Aunt Agatha likes her boarders short, to fit in the tiny attic space she rents out, and small, so they won't eat more than two slices of toast in the morning. When Harvey Angell moves in, he fits the bill perfectly. He's small, and best of all, he never eats breakfast.

Harvey Angell brightens up Henry's life like a supercharged thunderbolt. But despite his Connecting Kit and claim to be researching energy fields, Henry is sure Harvey's no ordinary electrician. He's up to something. And Henry's right. Because Harvey has special plans for Henry's household. Very special indeed.