"But you do not wish to leave London at present?"
"That is so; but a matter of such importance cannot be set aside. It appears, from what you say, that Wynne's life hangs more or less on my being able to clear away the mystery?"
"That is indeed the case. There ought not to be a single stone left unturned to get at the truth, for the sake of Wynne. Well, Mr. Bell, what do you propose to do?"
"To see the place without delay," I answered.
"That is right; when can you come?"
"Whenever you please."
"Will you come down to Felwyn with me to-morrow? I shall leave Paddington by the 7.10, and if you will be my guest I shall be only too pleased to put you up."
"That arrangement will suit me admirably," I replied. "I will meet you by the train you mention, and the affair shall have my best attention."
"Thank you," he said, rising. He shook hands with me and took his leave.
The next day I met Bainbridge at Paddington Station, and we were soon flying westward in the luxurious private compartment that had been reserved for him. I could see by his abstracted manner and his long lapses of silence that the mysterious affair at Felwyn Tunnel was occupying all his thoughts.