"They're marking that down on their plan for destruction," remarked Ray between his teeth. "All these connections will be destroyed when they land. But, by heaven! we'll be even with them yet!"
We watched them in secret for a full half-hour, as they examined the railroad at several points, and when they had driven off we followed them along a road where ran six lines of telegraph into Happisburgh.
"Those wires," remarked Ray, "form one of the direct cables to Germany. They pass through Beccles, so you may rest assured that they've surveyed it well!"
At Happisburgh the tracks turned to the left, and thence again to the right to Walcot, but just as we were passing over a low hill we saw that the car on before us had stopped. The two men were photographing the country from Paston, inland towards Witton.
We drew up and watched their movements.
Then they went on, and we followed, parting company with their tracks at the cross-roads, they going westward, while we struck north, until we found ourselves once again in Cromer for the night.
That evening we made an amazing discovery at the hotel. Erna Stolberg was staying there alone under the name of Madame Hirsch! Ray first saw her seated in the reading-room, and called me. I peered in at the door and recognised her in a pale blue silk blouse and black net skirt, lying back in a chair reading an illustrated paper. She was evidently quite unsuspicious of our presence.
Ray was sorely puzzled. Next morning he sent a wire to Mrs. Hill-Mason's house in Charles Street, and before noon had received a reply from her at Bournemouth saying that Fräulein Stolberg had left her service a fortnight before.
"German spies are pretty active in East Anglia, old chap, as you've seen with your own eyes," he remarked to me.
In order that the woman should not notice us, we told the chauffeur to meet us out on the Norwich road, after which we travelled to quaint old Aylsham, where we idled away the day, spending the afternoon playing billiards at the "White Horse."
More than once during the day my companion examined the road outside for traces of wheel-tracks, but there were none like those of the car of those secret agents of Hermann Hartmann.
I noticed that Ray had brought with him a small brown brief-bag, an unusual thing for him to carry. But that morning he had placed it in the car with instructions to the chauffeur to move it on no account.
At four o'clock that afternoon he received a telegram, which he read through twice, and placed on the fire, remarking: