I guess I had no business being an investigator. I looked at the judge, watching every move with his sharp old eyes. I glanced at Slim Coleman, sitting there, looking a little puzzled, his eyes deep and burning. I tried to ask Slim to forgive me. I looked at the screen. The roller-coaster car was pulling up to the top of the first hump. I took hold of the Brain-Finder. It was heavy, but I picked it up and held it over my head, then I heaved it onto the floor, and it was nothing but a mass of loose wires and broken glass. A woman screamed. Youngquist fainted. Slim came running with a question in his deep eyes. Tom Ellingbery's lawyer was triumphant. The judge pounded for order.... * * * * * This is four days later. Tom Ellingbery and his wife made up. Last night's paper showed them on the roller coaster. He was quoted as saying: "All I wanted was to ride the roller coaster." And she had said: "Boys will be boys." Slim brings me four ham sandwiches and coffee twice a day. He got acquainted with the blonde that Tom Ellingbery was riding the roller coasters with, and they went out to the park and had five dollars worth of rides the night that Tom Ellingbery paid Slim the five G's. (Tom said it was worth that much to have his wife back.) And do you know whom Slim and the blonde ran into at the Park? Mr. and Mrs. Swanberg. First thing I ever heard of a man in a tail-coat riding the roller coaster. In fact, everybody's got a blonde but me, and everybody's riding the roller coaster but me. I'm not riding them now. I got thirty days for contempt of court.