"No, sir. If you'll pardon me, sir, you're wrong. The professor was fixed in his habits. He would not go away without tellin' me. Think back, sir, you know the professor as well as me. Better, because you are his friend and I am only a servant. Although, sir," this proudly, "he always treated me as a friend." "Go on," I urged, seeing he was not finished. "Well, sir, a few minutes back you asked me if there was no other reason for my being upset like. There is, sir. You know, sir, that for more'n twenty years the professor has led a retired sort of life; the life of a--a--" "Recluse," I suggested. "That's it, sir. He only left The Grange when he had to. He was all wrapped up in some weird-like thing he was inventing. In all those years, sir, you were the only visitor who ever went into his laboratory, or stayed at The Grange for a night or more. That is, sir, until three days ago." "Go on," I again urged, some of his perturbation communicating itself to me. "The Grange, sir, lying as it does, fifteen miles from town an' back in its own grounds away from the road, isn't noted by many. When strangers do get into the grounds I usually gets 'em out again in short order. Three days ago, sir, a stranger drove up to the door in a fine car. He told me he was wantin' to purchase a country home. I told him The Grange was not for sale an' turned 'im away. He was turning his car to leave when my master came out. To my surprise, sir, he invited the stranger in. An' I'm sure, sir, because he looked so taken aback like, that the stranger had never seen the professor before." "And after that?" I asked, now feeling decidedly uneasy. "The stranger, sir--a Mr. Lathom he called himself--stayed on. He was in the study with the master last night. This morning there was no trace of either of them." "But--good God, John!" I jerked to my feet, a fresh dread clutching at my heart. "What are you trying to get at? The professor and Mr. Lathom might possibly have driven away somewhere last night." "Both cars, sir," the servant answered, "are in the garage. I bolt all the doors in the house myself every night. They were still fastened this morning. My wife an' me searched the house from cellar to garret an' hunted all over the grounds. We couldn't find a trace of the master or his guest." "You mean to suggest then," I shot at him, "that two full grown men have completely vanished? It's absurd, John, absurd!" * * * * *