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: "From Vera. She's received the thanks of the Admiralty for her report. They promise to make inquiry. Probably they'll send somebody over who can't speak a word of German!" We dined at half-past six off cold meat and pickles, but not until midnight did we set out upon the road, travelling north in the direction of Cromer, until we came to the cross roads at Hanworth, where we halted and Ray got down to examine the road. Wheel-tracks were there leading back to Roughton, and these we followed until, near the entrance to the village, now in complete darkness, we descended, Ray lifting out his precious bag. "You've got your revolver?" he asked, when we had gone a hundred yards or so. I replied in the affirmative, for nowadays I always carried it. "Well, we are going to get into that house at Roughton I pointed out to you," he said. "I intend to have a look round." "You mean to break in? Suppose we're caught!" I exclaimed. "Bah! Spies are always cowards. Leave that to me."