Three other things occurred that day, two of which I knew about immediately. Mary brought a portable typewriter from home and spent part of the afternoon banging away at what seemed to me, since I use two fingers only, a very creditable speed. And Hilary brought in a bottle of his new detergent. It was a syrupy yellow liquid with a nice collar of suds. He'd been busy in his home laboratory after all, it seemed. "What is it?" I asked. "You never told us." Hilary grinned. "Lauryl benzyl phosphonic acid, dipotassium salt, in 20% solution." "Goodness." I protested, "it's been twenty-five years since my last course in chemistry. Perhaps if I saw the formula--." He gave me a singularly adult smile and jotted down a scrawl of symbols and lines. It meant little to me. "Is it good?" For answer he seized the ice bucket, now empty of its soda bottles, trickled in a few drops from the bottle and swished the contents. Foam mounted to the rim and spilled over. "And that's our best grade of Ridgeville water," he pointed out. "Hardest in the country." The third event of Wednesday came to my ears on Thursday morning. I was a little late arriving at the barn, and was taken a bit aback to find the roadway leading to it rather full of parked automobiles, and the barn itself rather full of people, including two policemen. Our Ridgeville police are quite young men, but in uniform they still look ominous and I was relieved to see that they were laughing and evidently enjoying themselves. "Well, now," I demanded, in my best classroom voice. "What is all this?" "Are you Henderson?" the larger policeman asked. "I am indeed," I said, and a flash bulb went off. A young lady grasped my arm. "Oh, please, Mr. Henderson, come outside where it's quieter and tell me all about it." "Perhaps," I countered, "somebody should tell me." "You mean you don't know, honestly? Oh, it's fabulous. Best story I've had for ages. It'll make the city papers." She led me around the corner of the barn to a spot of comparative quiet. "You didn't know that one of your junior whatsisnames poured detergent in the Memorial Fountain basin last night?" I shook my head numbly. "It was priceless. Just before rush hour. Suds built up in the basin and overflowed, and down the library steps and covered the whole street. And the funniest part was they kept right on coming. You couldn't imagine so much suds coming from that little pool of water. There was a three-block traffic jam and Harry got us some marvelous pictures--men rolling up their trousers to wade across the street. And this morning," she chortled, "somebody phoned in an anonymous tip to the police--of course it was the same boy that did it--Tommy--Miller?--and so here we are. And we just saw a demonstration of that fabulous kite and saw all those simply captivating mice." "Mice?" "Yes, of course. Who would ever have thought you could breed mice with those cute furry tails?" * * *