A sunny summer’s day at the Hurlingham Club resounds to the thwack of ball on racket, as Britain’s young hopeful, the splendidly named Trish Thumper, seems likely to knock out her American opponent. Yet not all the eyes following Trish’s strokes belong to tennis fans – it soon emerges that her father, the notoriously stern Judge William Thumper, has made an enemy who will stop at little to harm him and his daughter.



But the wrongdoers have reckoned without artistic sleuth Miss Emily Seeton, who in a series of apparently mistimed shots with torch and umbrella, defeats them game, set and match.



Serene amidst every kind of skulduggery, this eccentric English spinster steps in where Scotland Yard stumbles, armed with nothing more than her sketchpad and umbrella!