It was about a week after this, when preparations for the big attack had almost reached completion, that the three chums, having an hour or so to spare, thought to call on Professor Snodgrass. They went to the little house in the French village where he had been staying, and inquired for him.
“He has disappeared, Messieurs,” answered the old woman who looked after the place.
“Disappeared!” echoed the boys blankly.
“Yes, Messieurs. He went out yesterday morning without his hat to chase after a butterfly he saw in the garden, and he did not come back. He has disappeared. I am sorry, for he was a nice man, though a trifle queer at times.”
“Well, what do you know about that?” gasped Jerry, while his chums looked at him in wondering amazement.
CHAPTER XXVII
ST. MIHIEL
“What are we going to do?” asked Bob.