not suppose that the basement can be later than the Norman Conquest. Some years ago, when I was President of the Mercian Archaeological Society, I went all over it very carefully. This was when it was purchased by Captain March. The house had then been done up, so as to be suitable for the bride. The basement is very strong,—almost as strong and as heavy as if it had been intended as a fortress. There are a whole series of rooms deep underground. One of them in particular struck me. The room itself is of considerable size, but the masonry is more than massive. In the middle of the room is a sunk well, built up to floor level and evidently going deep underground. There is no windlass nor any trace of there ever having been any—no rope—nothing. Now, we know that the Romans had wells of immense depth, from which the water was lifted by the ‘old rag rope’; that at Woodhull used to be nearly a thousand feet. Here, then, we have simply an enormously deep well-hole. The door of the room was massive, and was fastened with a lock nearly a foot square. It was evidently intended for some kind of protection to someone or something; but no one in those days had ever heard of anyone having been allowed even to see the room. All this is à propos of a suggestion on my part that the well-hole was a way by which the White Worm (whatever it was) went and came. At that time I would have had a search made—even excavation if necessary—at my own expense, but all suggestions were met with a prompt and explicit negative. So, of course, I took no further step in the matter. Then it died out of recollection—even of mine.”
“Do you remember, sir,” asked Adam, “what was the appearance of the room where the well-hole was? Was there furniture—in fact, any sort of thing in the room?”
“The only thing I remember was a sort of green light—very clouded, very dim—which came up from the well. Not a fixed light, but intermittent and irregular—quite unlike anything I had ever seen.”
“Do you remember how you got into the well-room? Was there a separate door from outside, or was there any interior room or passage which opened into it?”
“I think there must have been some room with a way into it. I remember going up some steep steps; they must have been worn smooth by long use or something of the kind, for I could hardly keep my feet as I went up. Once I stumbled and nearly fell into the well-hole.”
“Was there anything strange about the place—any queer smell, for instance?”
“Queer smell—yes! Like bilge or a rank swamp. It was distinctly nauseating; when I came out I felt as if I had just been going to be sick. I shall try back on my visit and see if I can recall any more of what I saw or felt.”
“Then perhaps, sir, later in the day you will tell me anything you may chance to recollect.”
“I shall be delighted, Adam. If your uncle has not returned by then, I’ll join you in the study after dinner, and we can resume this interesting chat.”
CHAPTER XVII—THE MYSTERY OF “THE GROVE”
That afternoon Adam decided to do a little exploring. As he passed through the wood outside the gate of Diana’s Grove, he thought he saw the African’s face for an instant. So he went deeper into the undergrowth, and followed along parallel to the avenue to the house. He was glad that there was no workman or servant about, for he did not care that any of Lady Arabella’s people should find him wandering about her grounds. Taking advantage of the denseness of the trees, he came close to the house and skirted round it. He was repaid for his trouble, for on the far side of the house, close to where the rocky frontage of the cliff fell away, he saw Oolanga crouched behind the irregular trunk of a great oak. The man was so intent on watching someone, or something, that he did not guard against being himself watched. This suited Adam, for he could thus make scrutiny at will.
The thick wood, though the trees were mostly of small girth, threw a heavy shadow, so that the steep declension, in front of which grew the tree behind which the African lurked, was almost in darkness. Adam drew as close as he could, and was amazed to see a patch of light on the ground before him; when he realised what it was, he was determined, more than ever to follow on his quest. The nigger had a dark lantern in his hand, and was throwing the light down the steep incline. The glare showed a series of stone steps, which ended in a low-lying heavy iron door fixed against the side of the house. All the strange things he had heard from Sir Nathaniel, and all those, little and big, which he had himself noticed, crowded into his mind in a chaotic way. Instinctively he took refuge behind a thick oak stem, and set himself down, to watch what might occur.
After a short time it became apparent that the African was trying to find out what was behind the heavy door. There was no way of looking in, for the door fitted tight into the massive stone slabs. The only opportunity for the entrance of light was through a small hole between the great stones above the door. This hole was too high up to look through from the ground level. Oolanga, having tried standing tiptoe on the highest point near, and holding the lantern as high as he could, threw the light round the edges of the door to see if he could find anywhere a hole or a flaw in the metal through which he could obtain a glimpse. Foiled in this, he brought from the shrubbery a plank, which he leant against the top of the door and then climbed up with great dexterity. This did not bring him near enough to the window-hole to look in, or even to throw the light of the lantern through it, so he climbed down and carried the plank back to the place from which he had got it. Then he concealed himself near the iron door and waited, manifestly with the intent of remaining there till someone came near. Presently Lady Arabella, moving noiselessly through the shade, approached the door. When he saw her close enough to touch it, Oolanga stepped forward from his concealment, and spoke in a whisper, which through the gloom sounded like a hiss.
“I want to see you, missy—soon and secret.”
“What do you want?”
“You know well, missy; I told you already.”
She turned on him with blazing eyes, the green tint in them glowing like emeralds.
“Come, none of that. If there is anything sensible which you wish to say to me, you can see me here, just where we are, at seven o’clock.”
He made no reply in words, but, putting the backs of his hands together, bent lower and lower till his forehead touched the earth. Then he rose and went slowly away.
Adam Salton, from his hiding-place, saw and wondered. In a few minutes he moved from his place and went home to Lesser Hill, fully determined that seven o’clock would find him in some hidden place behind Diana’s Grove.
At a little before seven Adam stole softly out of the house and took the back-way to the rear of Diana’s Grove. The place seemed silent and deserted, so he took the opportunity of concealing himself near the spot whence he had seen Oolanga trying to investigate whatever was concealed behind the iron door. He waited, perfectly still, and at last saw a gleam of white passing soundlessly through the undergrowth. He was not surprised when he recognised the colour of Lady Arabella’s dress. She came close and waited, with her face to the iron door. From some place of concealment near at hand Oolanga appeared, and came close to her. Adam noticed, with surprised amusement, that over his shoulder was the box with the mongoose. Of course the African did not know that he was seen by anyone, least of all by the man whose property he had with him.
Silent-footed as he was, Lady Arabella heard him coming, and turned to meet him. It was somewhat hard to see in the gloom, for, as usual, he was all in black, only his collar and cuffs showing white. Lady Arabella opened the conversation which ensued between the two.
“What do you want? To rob me, or murder me?”
“No, to lub you!”
This frightened her a little, and she tried to change the tone.
“Is
