So ran the reasonable prefiguring; but plans and prefigurings based upon the performance of a gasolene motor call for a generous factor of safety. Five miles from a tool-box in either direction, the engines of the runabout set up an ominous knocking. A stop was made, and Ballard filled and lighted his pipe while the chauffeur opened the bonnet and tapped and pried and screwed and adjusted. Ten minutes were lost in the testing and trying, and then the German named the trouble, with an emphatic "Himmel!" for a foreword. A broken bolt-head had dropped into the crank-case, and it would be necessary to take the engines to pieces to get it out. Ballard consulted his watch again. It lacked only a quarter of an hour of the Castle 'Cadia dinner-time; and a five-mile tramp over the hills would consume at least an hour. Whatever danger might be threatening the playwright (and the farther Ballard got away from the revelations of the early afternoon, the more the entire fabric of accusation threatened to crumble into the stuff nightmares are made of), a delay of an hour or two could hardly bring it to a crisis. Hence, when Otto lighted the lamps and got out his wrenches, his passenger stayed with him and became a very efficient mechanic's helper.
This, as we have seen, was at a quarter before seven. At a quarter before nine the broken bolt was replaced, the last nut was screwed home, and the engines of the runabout were once more in commission.
"A handy bit of road repairing, Otto," was Ballard's comment. "And we did it five miles from a lemon. How long will it take us to get in?"
The Berliner did not know. With no further bad luck, fifteen or twenty minutes should be enough. And in fifteen minutes or less the little car was racing up the maple-shaded avenue to the Castle 'Cadia carriage entrance.
Ballard felt trouble in the air before he descended from the car. The great portico was deserted, the piano was silent, and the lights were on in the upper rooms of the house. At the mounting of the steps, the Forestry man met him and drew him aside into the library, which was as empty as the portico.
"I heard the car and thought it would be Mr. Bromley," Bigelow explained; adding: "I'm glad he didn't come. There has been an accident."
"To—to Wingfield?"
"Yes. How did you know? It was just after dinner. The colonel had some experimental mixture cooking in his electric furnace, and he invited us all down to the laboratory to see the result. Wingfield tangled himself in the wires in some unaccountable way and got a terrible shock. For a few minutes we all thought he was killed, but the colonel would not give up, and now he is slowly recovering."
Ballard sat down in the nearest chair and held his head in his hands. His mind was in the condition of a coffer-dam that has been laboriously pumped out, only to be overwhelmed by a sudden and irresistible return of the flood. The theory of premeditated assassination was no nightmare; it was a pitiless, brutal, inhuman fact. Wingfield, an invited guest, and with a guest's privileges and immunities, had been tried, convicted, and sentenced for knowing too much.
"It's pretty bad, isn't it?" he said to Bigelow, feeling the necessity of saying something, and realising at the same instant the futility of putting the horror of it into words for one who knew nothing of the true state of affairs.